Home / 87,386.90-130,989.45-59,309.23

Finding the Fourth Proportional to 87,386.90, 130,989.45 and 59,309.23

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Solution

The fourth proportional to 87,386.90, 130,989.45 and 59,309.23 is: 88,902.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,386.90 : 130,989.45 = 59,309.23 : x
  2. Step 2: Convert to fraction form
    87,386.90/130,989.45 = 59,309.23/x
  3. Step 3: Cross multiply
    87,386.90x = 130,989.45 × 59,309.23
  4. Step 4: Simplify right side
    87,386.90x = 7,768,883,121.08
  5. Step 5: Solve for x
    x = 7,768,883,121.08/87,386.90
  6. Step 6: Final answer
    x = 88,902.15

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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.