Home / 86,077.18-129,123.20-23,747.68

Finding the Fourth Proportional to 86,077.18, 129,123.20 and 23,747.68

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Solution

The fourth proportional to 86,077.18, 129,123.20 and 23,747.68 is: 35,623.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,077.18 : 129,123.20 = 23,747.68 : x
  2. Step 2: Convert to fraction form
    86,077.18/129,123.20 = 23,747.68/x
  3. Step 3: Cross multiply
    86,077.18x = 129,123.20 × 23,747.68
  4. Step 4: Simplify right side
    86,077.18x = 3,066,376,434.18
  5. Step 5: Solve for x
    x = 3,066,376,434.18/86,077.18
  6. Step 6: Final answer
    x = 35,623.57

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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.