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Finding the Fourth Proportional to 88,071.75, 132,020.64 and 56,391.66

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Solution

The fourth proportional to 88,071.75, 132,020.64 and 56,391.66 is: 84,531.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,071.75 : 132,020.64 = 56,391.66 : x
  2. Step 2: Convert to fraction form
    88,071.75/132,020.64 = 56,391.66/x
  3. Step 3: Cross multiply
    88,071.75x = 132,020.64 × 56,391.66
  4. Step 4: Simplify right side
    88,071.75x = 7,444,863,043.86
  5. Step 5: Solve for x
    x = 7,444,863,043.86/88,071.75
  6. Step 6: Final answer
    x = 84,531.79

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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.