Home / 87,035.50-130,350.79-84,641.05

Finding the Fourth Proportional to 87,035.50, 130,350.79 and 84,641.05

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Solution

The fourth proportional to 87,035.50, 130,350.79 and 84,641.05 is: 126,764.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,035.50 : 130,350.79 = 84,641.05 : x
  2. Step 2: Convert to fraction form
    87,035.50/130,350.79 = 84,641.05/x
  3. Step 3: Cross multiply
    87,035.50x = 130,350.79 × 84,641.05
  4. Step 4: Simplify right side
    87,035.50x = 11,033,027,733.93
  5. Step 5: Solve for x
    x = 11,033,027,733.93/87,035.50
  6. Step 6: Final answer
    x = 126,764.68

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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.