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Finding the Fourth Proportional to 64,372.18, 88,807.74 and 40,158.88

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Solution

The fourth proportional to 64,372.18, 88,807.74 and 40,158.88 is: 55,403.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,372.18 : 88,807.74 = 40,158.88 : x
  2. Step 2: Convert to fraction form
    64,372.18/88,807.74 = 40,158.88/x
  3. Step 3: Cross multiply
    64,372.18x = 88,807.74 × 40,158.88
  4. Step 4: Simplify right side
    64,372.18x = 3,566,419,373.73
  5. Step 5: Solve for x
    x = 3,566,419,373.73/64,372.18
  6. Step 6: Final answer
    x = 55,403.12

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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.