Home / 63,805.20-88,082.28-39,945.12

Finding the Fourth Proportional to 63,805.20, 88,082.28 and 39,945.12

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Solution

The fourth proportional to 63,805.20, 88,082.28 and 39,945.12 is: 55,143.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,805.20 : 88,082.28 = 39,945.12 : x
  2. Step 2: Convert to fraction form
    63,805.20/88,082.28 = 39,945.12/x
  3. Step 3: Cross multiply
    63,805.20x = 88,082.28 × 39,945.12
  4. Step 4: Simplify right side
    63,805.20x = 3,518,457,244.47
  5. Step 5: Solve for x
    x = 3,518,457,244.47/63,805.20
  6. Step 6: Final answer
    x = 55,143.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.