Home / 86,583.85-129,883.17-30,419.08

Finding the Fourth Proportional to 86,583.85, 129,883.17 and 30,419.08

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Solution

The fourth proportional to 86,583.85, 129,883.17 and 30,419.08 is: 45,631.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,583.85 : 129,883.17 = 30,419.08 : x
  2. Step 2: Convert to fraction form
    86,583.85/129,883.17 = 30,419.08/x
  3. Step 3: Cross multiply
    86,583.85x = 129,883.17 × 30,419.08
  4. Step 4: Simplify right side
    86,583.85x = 3,950,926,538.88
  5. Step 5: Solve for x
    x = 3,950,926,538.88/86,583.85
  6. Step 6: Final answer
    x = 45,631.22

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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.