Home / 87,270.26-130,821.89-28,064.25

Finding the Fourth Proportional to 87,270.26, 130,821.89 and 28,064.25

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Solution

The fourth proportional to 87,270.26, 130,821.89 and 28,064.25 is: 42,069.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,270.26 : 130,821.89 = 28,064.25 : x
  2. Step 2: Convert to fraction form
    87,270.26/130,821.89 = 28,064.25/x
  3. Step 3: Cross multiply
    87,270.26x = 130,821.89 × 28,064.25
  4. Step 4: Simplify right side
    87,270.26x = 3,671,418,086.11
  5. Step 5: Solve for x
    x = 3,671,418,086.11/87,270.26
  6. Step 6: Final answer
    x = 42,069.52

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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.