Home / 86,343.22-129,388.84-38,253.82

Finding the Fourth Proportional to 86,343.22, 129,388.84 and 38,253.82

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Solution

The fourth proportional to 86,343.22, 129,388.84 and 38,253.82 is: 57,324.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,343.22 : 129,388.84 = 38,253.82 : x
  2. Step 2: Convert to fraction form
    86,343.22/129,388.84 = 38,253.82/x
  3. Step 3: Cross multiply
    86,343.22x = 129,388.84 × 38,253.82
  4. Step 4: Simplify right side
    86,343.22x = 4,949,617,434.04
  5. Step 5: Solve for x
    x = 4,949,617,434.04/86,343.22
  6. Step 6: Final answer
    x = 57,324.91

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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.