Home / 87,045.98-130,568.94-57,456.88

Finding the Fourth Proportional to 87,045.98, 130,568.94 and 57,456.88

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Solution

The fourth proportional to 87,045.98, 130,568.94 and 57,456.88 is: 86,185.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,045.98 : 130,568.94 = 57,456.88 : x
  2. Step 2: Convert to fraction form
    87,045.98/130,568.94 = 57,456.88/x
  3. Step 3: Cross multiply
    87,045.98x = 130,568.94 × 57,456.88
  4. Step 4: Simplify right side
    87,045.98x = 7,502,083,590.88
  5. Step 5: Solve for x
    x = 7,502,083,590.88/87,045.98
  6. Step 6: Final answer
    x = 86,185.30

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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.