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Finding the Fourth Proportional to 73,414.32, 101,312.28 and 39,880.32

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Solution

The fourth proportional to 73,414.32, 101,312.28 and 39,880.32 is: 55,035.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,414.32 : 101,312.28 = 39,880.32 : x
  2. Step 2: Convert to fraction form
    73,414.32/101,312.28 = 39,880.32/x
  3. Step 3: Cross multiply
    73,414.32x = 101,312.28 × 39,880.32
  4. Step 4: Simplify right side
    73,414.32x = 4,040,366,146.33
  5. Step 5: Solve for x
    x = 4,040,366,146.33/73,414.32
  6. Step 6: Final answer
    x = 55,035.12

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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.