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Finding the Fourth Proportional to 89,141.64, 133,620.28 and 29,957.40

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Solution

The fourth proportional to 89,141.64, 133,620.28 and 29,957.40 is: 44,905.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,141.64 : 133,620.28 = 29,957.40 : x
  2. Step 2: Convert to fraction form
    89,141.64/133,620.28 = 29,957.40/x
  3. Step 3: Cross multiply
    89,141.64x = 133,620.28 × 29,957.40
  4. Step 4: Simplify right side
    89,141.64x = 4,002,916,176.07
  5. Step 5: Solve for x
    x = 4,002,916,176.07/89,141.64
  6. Step 6: Final answer
    x = 44,905.12

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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.