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Finding the Fourth Proportional to 71,081.28, 106,622.32 and 29,528.32

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Solution

The fourth proportional to 71,081.28, 106,622.32 and 29,528.32 is: 44,292.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,081.28 : 106,622.32 = 29,528.32 : x
  2. Step 2: Convert to fraction form
    71,081.28/106,622.32 = 29,528.32/x
  3. Step 3: Cross multiply
    71,081.28x = 106,622.32 × 29,528.32
  4. Step 4: Simplify right side
    71,081.28x = 3,148,377,984.10
  5. Step 5: Solve for x
    x = 3,148,377,984.10/71,081.28
  6. Step 6: Final answer
    x = 44,292.65

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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.