Home / 86,237.03-129,375-26,270.87

Finding the Fourth Proportional to 86,237.03, 129,375 and 26,270.87

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Solution

The fourth proportional to 86,237.03, 129,375 and 26,270.87 is: 39,412.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,237.03 : 129,375 = 26,270.87 : x
  2. Step 2: Convert to fraction form
    86,237.03/129,375 = 26,270.87/x
  3. Step 3: Cross multiply
    86,237.03x = 129,375 × 26,270.87
  4. Step 4: Simplify right side
    86,237.03x = 3,398,793,159.38
  5. Step 5: Solve for x
    x = 3,398,793,159.38/86,237.03
  6. Step 6: Final answer
    x = 39,412.23

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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.