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Finding the Fourth Proportional to 85,522.64, 128,251.15 and 29,352.27

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Solution

The fourth proportional to 85,522.64, 128,251.15 and 29,352.27 is: 44,017.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,522.64 : 128,251.15 = 29,352.27 : x
  2. Step 2: Convert to fraction form
    85,522.64/128,251.15 = 29,352.27/x
  3. Step 3: Cross multiply
    85,522.64x = 128,251.15 × 29,352.27
  4. Step 4: Simplify right side
    85,522.64x = 3,764,462,790.17
  5. Step 5: Solve for x
    x = 3,764,462,790.17/85,522.64
  6. Step 6: Final answer
    x = 44,017.15

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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.