Home / 87,234.57-130,877.37-28,068.93

Finding the Fourth Proportional to 87,234.57, 130,877.37 and 28,068.93

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Solution

The fourth proportional to 87,234.57, 130,877.37 and 28,068.93 is: 42,111.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,234.57 : 130,877.37 = 28,068.93 : x
  2. Step 2: Convert to fraction form
    87,234.57/130,877.37 = 28,068.93/x
  3. Step 3: Cross multiply
    87,234.57x = 130,877.37 × 28,068.93
  4. Step 4: Simplify right side
    87,234.57x = 3,673,587,737.11
  5. Step 5: Solve for x
    x = 3,673,587,737.11/87,234.57
  6. Step 6: Final answer
    x = 42,111.60

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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.