Home / 49,143.60-73,715.40-21,077.10

Finding the Fourth Proportional to 49,143.60, 73,715.40 and 21,077.10

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Solution

The fourth proportional to 49,143.60, 73,715.40 and 21,077.10 is: 31,615.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,143.60 : 73,715.40 = 21,077.10 : x
  2. Step 2: Convert to fraction form
    49,143.60/73,715.40 = 21,077.10/x
  3. Step 3: Cross multiply
    49,143.60x = 73,715.40 × 21,077.10
  4. Step 4: Simplify right side
    49,143.60x = 1,553,706,857.34
  5. Step 5: Solve for x
    x = 1,553,706,857.34/49,143.60
  6. Step 6: Final answer
    x = 31,615.65

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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.