Home / 51,712.57-77,549.70-18,423.80

Finding the Fourth Proportional to 51,712.57, 77,549.70 and 18,423.80

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Solution

The fourth proportional to 51,712.57, 77,549.70 and 18,423.80 is: 27,628.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,712.57 : 77,549.70 = 18,423.80 : x
  2. Step 2: Convert to fraction form
    51,712.57/77,549.70 = 18,423.80/x
  3. Step 3: Cross multiply
    51,712.57x = 77,549.70 × 18,423.80
  4. Step 4: Simplify right side
    51,712.57x = 1,428,760,070.74
  5. Step 5: Solve for x
    x = 1,428,760,070.74/51,712.57
  6. Step 6: Final answer
    x = 27,628.87

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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.