Home / 87,035-130,534.20-42,617

Finding the Fourth Proportional to 87,035, 130,534.20 and 42,617

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Solution

The fourth proportional to 87,035, 130,534.20 and 42,617 is: 63,916.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,035 : 130,534.20 = 42,617 : x
  2. Step 2: Convert to fraction form
    87,035/130,534.20 = 42,617/x
  3. Step 3: Cross multiply
    87,035x = 130,534.20 × 42,617
  4. Step 4: Simplify right side
    87,035x = 5,562,976,001.40
  5. Step 5: Solve for x
    x = 5,562,976,001.40/87,035
  6. Step 6: Final answer
    x = 63,916.54

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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.