Home / 86,619.36-129,918.24-24,294.72

Finding the Fourth Proportional to 86,619.36, 129,918.24 and 24,294.72

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Solution

The fourth proportional to 86,619.36, 129,918.24 and 24,294.72 is: 36,439.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,619.36 : 129,918.24 = 24,294.72 : x
  2. Step 2: Convert to fraction form
    86,619.36/129,918.24 = 24,294.72/x
  3. Step 3: Cross multiply
    86,619.36x = 129,918.24 × 24,294.72
  4. Step 4: Simplify right side
    86,619.36x = 3,156,327,263.69
  5. Step 5: Solve for x
    x = 3,156,327,263.69/86,619.36
  6. Step 6: Final answer
    x = 36,439.05

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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.