Home / 87,205.55-130,579.94-57,125.16

Finding the Fourth Proportional to 87,205.55, 130,579.94 and 57,125.16

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Solution

The fourth proportional to 87,205.55, 130,579.94 and 57,125.16 is: 85,538.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,205.55 : 130,579.94 = 57,125.16 : x
  2. Step 2: Convert to fraction form
    87,205.55/130,579.94 = 57,125.16/x
  3. Step 3: Cross multiply
    87,205.55x = 130,579.94 × 57,125.16
  4. Step 4: Simplify right side
    87,205.55x = 7,459,399,679.66
  5. Step 5: Solve for x
    x = 7,459,399,679.66/87,205.55
  6. Step 6: Final answer
    x = 85,538.13

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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.