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Finding the Fourth Proportional to 63,955.56, 88,314.40 and 40,123.20

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Solution

The fourth proportional to 63,955.56, 88,314.40 and 40,123.20 is: 55,404.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,955.56 : 88,314.40 = 40,123.20 : x
  2. Step 2: Convert to fraction form
    63,955.56/88,314.40 = 40,123.20/x
  3. Step 3: Cross multiply
    63,955.56x = 88,314.40 × 40,123.20
  4. Step 4: Simplify right side
    63,955.56x = 3,543,456,334.08
  5. Step 5: Solve for x
    x = 3,543,456,334.08/63,955.56
  6. Step 6: Final answer
    x = 55,404.98

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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.