Home / 87,045.96-130,568.94-57,456.89

Finding the Fourth Proportional to 87,045.96, 130,568.94 and 57,456.89

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Solution

The fourth proportional to 87,045.96, 130,568.94 and 57,456.89 is: 86,185.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,045.96 : 130,568.94 = 57,456.89 : x
  2. Step 2: Convert to fraction form
    87,045.96/130,568.94 = 57,456.89/x
  3. Step 3: Cross multiply
    87,045.96x = 130,568.94 × 57,456.89
  4. Step 4: Simplify right side
    87,045.96x = 7,502,084,570.15
  5. Step 5: Solve for x
    x = 7,502,084,570.15/87,045.96
  6. Step 6: Final answer
    x = 86,185.33

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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.