Home / 87,580.60-131,369.64-59,430.76

Finding the Fourth Proportional to 87,580.60, 131,369.64 and 59,430.76

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Solution

The fourth proportional to 87,580.60, 131,369.64 and 59,430.76 is: 89,145.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,580.60 : 131,369.64 = 59,430.76 : x
  2. Step 2: Convert to fraction form
    87,580.60/131,369.64 = 59,430.76/x
  3. Step 3: Cross multiply
    87,580.60x = 131,369.64 × 59,430.76
  4. Step 4: Simplify right side
    87,580.60x = 7,807,397,546.13
  5. Step 5: Solve for x
    x = 7,807,397,546.13/87,580.60
  6. Step 6: Final answer
    x = 89,145.28

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1.5x scale

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.