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Finding the Fourth Proportional to 89,287.80, 133,931.58 and 36,660.24

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Solution

The fourth proportional to 89,287.80, 133,931.58 and 36,660.24 is: 54,990.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,287.80 : 133,931.58 = 36,660.24 : x
  2. Step 2: Convert to fraction form
    89,287.80/133,931.58 = 36,660.24/x
  3. Step 3: Cross multiply
    89,287.80x = 133,931.58 × 36,660.24
  4. Step 4: Simplify right side
    89,287.80x = 4,909,963,866.38
  5. Step 5: Solve for x
    x = 4,909,963,866.38/89,287.80
  6. Step 6: Final answer
    x = 54,990.31

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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.