Home / 86,195.78-129,307.44-30,052.04

Finding the Fourth Proportional to 86,195.78, 129,307.44 and 30,052.04

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Solution

The fourth proportional to 86,195.78, 129,307.44 and 30,052.04 is: 45,082.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,195.78 : 129,307.44 = 30,052.04 : x
  2. Step 2: Convert to fraction form
    86,195.78/129,307.44 = 30,052.04/x
  3. Step 3: Cross multiply
    86,195.78x = 129,307.44 × 30,052.04
  4. Step 4: Simplify right side
    86,195.78x = 3,885,952,359.18
  5. Step 5: Solve for x
    x = 3,885,952,359.18/86,195.78
  6. Step 6: Final answer
    x = 45,082.86

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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.