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Finding the Fourth Proportional to 64,393.20, 88,881.17 and 38,895.53

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Solution

The fourth proportional to 64,393.20, 88,881.17 and 38,895.53 is: 53,687.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,393.20 : 88,881.17 = 38,895.53 : x
  2. Step 2: Convert to fraction form
    64,393.20/88,881.17 = 38,895.53/x
  3. Step 3: Cross multiply
    64,393.20x = 88,881.17 × 38,895.53
  4. Step 4: Simplify right side
    64,393.20x = 3,457,079,575.29
  5. Step 5: Solve for x
    x = 3,457,079,575.29/64,393.20
  6. Step 6: Final answer
    x = 53,687.03

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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.