Home / 50,665.40-75,998.10-15,615.80

Finding the Fourth Proportional to 50,665.40, 75,998.10 and 15,615.80

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Solution

The fourth proportional to 50,665.40, 75,998.10 and 15,615.80 is: 23,423.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,665.40 : 75,998.10 = 15,615.80 : x
  2. Step 2: Convert to fraction form
    50,665.40/75,998.10 = 15,615.80/x
  3. Step 3: Cross multiply
    50,665.40x = 75,998.10 × 15,615.80
  4. Step 4: Simplify right side
    50,665.40x = 1,186,771,129.98
  5. Step 5: Solve for x
    x = 1,186,771,129.98/50,665.40
  6. Step 6: Final answer
    x = 23,423.70

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.