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Finding the Fourth Proportional to 64,715.73, 89,290.29 and 37,864.86

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Solution

The fourth proportional to 64,715.73, 89,290.29 and 37,864.86 is: 52,243.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,715.73 : 89,290.29 = 37,864.86 : x
  2. Step 2: Convert to fraction form
    64,715.73/89,290.29 = 37,864.86/x
  3. Step 3: Cross multiply
    64,715.73x = 89,290.29 × 37,864.86
  4. Step 4: Simplify right side
    64,715.73x = 3,380,964,330.21
  5. Step 5: Solve for x
    x = 3,380,964,330.21/64,715.73
  6. Step 6: Final answer
    x = 52,243.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.