Home / 87,062.19-130,418.28-45,421.71

Finding the Fourth Proportional to 87,062.19, 130,418.28 and 45,421.71

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Solution

The fourth proportional to 87,062.19, 130,418.28 and 45,421.71 is: 68,041.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,062.19 : 130,418.28 = 45,421.71 : x
  2. Step 2: Convert to fraction form
    87,062.19/130,418.28 = 45,421.71/x
  3. Step 3: Cross multiply
    87,062.19x = 130,418.28 × 45,421.71
  4. Step 4: Simplify right side
    87,062.19x = 5,923,821,292.86
  5. Step 5: Solve for x
    x = 5,923,821,292.86/87,062.19
  6. Step 6: Final answer
    x = 68,041.26

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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.