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Finding the Fourth Proportional to 87,695.60, 131,435.40 and 59,615.60

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Solution

The fourth proportional to 87,695.60, 131,435.40 and 59,615.60 is: 89,349.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,695.60 : 131,435.40 = 59,615.60 : x
  2. Step 2: Convert to fraction form
    87,695.60/131,435.40 = 59,615.60/x
  3. Step 3: Cross multiply
    87,695.60x = 131,435.40 × 59,615.60
  4. Step 4: Simplify right side
    87,695.60x = 7,835,600,232.24
  5. Step 5: Solve for x
    x = 7,835,600,232.24/87,695.60
  6. Step 6: Final answer
    x = 89,349.98

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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.