Home / 87,054.17-130,560.27-55,416.78

Finding the Fourth Proportional to 87,054.17, 130,560.27 and 55,416.78

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Solution

The fourth proportional to 87,054.17, 130,560.27 and 55,416.78 is: 83,111.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,054.17 : 130,560.27 = 55,416.78 : x
  2. Step 2: Convert to fraction form
    87,054.17/130,560.27 = 55,416.78/x
  3. Step 3: Cross multiply
    87,054.17x = 130,560.27 × 55,416.78
  4. Step 4: Simplify right side
    87,054.17x = 7,235,229,759.33
  5. Step 5: Solve for x
    x = 7,235,229,759.33/87,054.17
  6. Step 6: Final answer
    x = 83,111.82

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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.