Home / 86,513.12-129,763.20-24,188.48

Finding the Fourth Proportional to 86,513.12, 129,763.20 and 24,188.48

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Solution

The fourth proportional to 86,513.12, 129,763.20 and 24,188.48 is: 36,280.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,513.12 : 129,763.20 = 24,188.48 : x
  2. Step 2: Convert to fraction form
    86,513.12/129,763.20 = 24,188.48/x
  3. Step 3: Cross multiply
    86,513.12x = 129,763.20 × 24,188.48
  4. Step 4: Simplify right side
    86,513.12x = 3,138,774,567.94
  5. Step 5: Solve for x
    x = 3,138,774,567.94/86,513.12
  6. Step 6: Final answer
    x = 36,280.91

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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.