Home / 86,434.26-129,655.52-42,008.10

Finding the Fourth Proportional to 86,434.26, 129,655.52 and 42,008.10

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Solution

The fourth proportional to 86,434.26, 129,655.52 and 42,008.10 is: 63,014.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,434.26 : 129,655.52 = 42,008.10 : x
  2. Step 2: Convert to fraction form
    86,434.26/129,655.52 = 42,008.10/x
  3. Step 3: Cross multiply
    86,434.26x = 129,655.52 × 42,008.10
  4. Step 4: Simplify right side
    86,434.26x = 5,446,581,839.67
  5. Step 5: Solve for x
    x = 5,446,581,839.67/86,434.26
  6. Step 6: Final answer
    x = 63,014.15

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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.