Home / 86,242.26-129,363.96-30,082.16

Finding the Fourth Proportional to 86,242.26, 129,363.96 and 30,082.16

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Solution

The fourth proportional to 86,242.26, 129,363.96 and 30,082.16 is: 45,123.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,242.26 : 129,363.96 = 30,082.16 : x
  2. Step 2: Convert to fraction form
    86,242.26/129,363.96 = 30,082.16/x
  3. Step 3: Cross multiply
    86,242.26x = 129,363.96 × 30,082.16
  4. Step 4: Simplify right side
    86,242.26x = 3,891,547,342.95
  5. Step 5: Solve for x
    x = 3,891,547,342.95/86,242.26
  6. Step 6: Final answer
    x = 45,123.44

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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.