Home / 87,118.56-120,182.40-58,834.08

Finding the Fourth Proportional to 87,118.56, 120,182.40 and 58,834.08

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Solution

The fourth proportional to 87,118.56, 120,182.40 and 58,834.08 is: 81,163.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,118.56 : 120,182.40 = 58,834.08 : x
  2. Step 2: Convert to fraction form
    87,118.56/120,182.40 = 58,834.08/x
  3. Step 3: Cross multiply
    87,118.56x = 120,182.40 × 58,834.08
  4. Step 4: Simplify right side
    87,118.56x = 7,070,820,936.19
  5. Step 5: Solve for x
    x = 7,070,820,936.19/87,118.56
  6. Step 6: Final answer
    x = 81,163.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.