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Finding the Fourth Proportional to 91,685.72, 137,528.64 and 29,356.28

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Solution

The fourth proportional to 91,685.72, 137,528.64 and 29,356.28 is: 44,034.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,685.72 : 137,528.64 = 29,356.28 : x
  2. Step 2: Convert to fraction form
    91,685.72/137,528.64 = 29,356.28/x
  3. Step 3: Cross multiply
    91,685.72x = 137,528.64 × 29,356.28
  4. Step 4: Simplify right side
    91,685.72x = 4,037,329,263.86
  5. Step 5: Solve for x
    x = 4,037,329,263.86/91,685.72
  6. Step 6: Final answer
    x = 44,034.44

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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.