Home / 87,239.07-130,884.12-28,073.43

Finding the Fourth Proportional to 87,239.07, 130,884.12 and 28,073.43

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Solution

The fourth proportional to 87,239.07, 130,884.12 and 28,073.43 is: 42,118.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,239.07 : 130,884.12 = 28,073.43 : x
  2. Step 2: Convert to fraction form
    87,239.07/130,884.12 = 28,073.43/x
  3. Step 3: Cross multiply
    87,239.07x = 130,884.12 × 28,073.43
  4. Step 4: Simplify right side
    87,239.07x = 3,674,366,180.93
  5. Step 5: Solve for x
    x = 3,674,366,180.93/87,239.07
  6. Step 6: Final answer
    x = 42,118.36

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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.