Home / 86,400.25-129,607.80-24,070.75

Finding the Fourth Proportional to 86,400.25, 129,607.80 and 24,070.75

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Solution

The fourth proportional to 86,400.25, 129,607.80 and 24,070.75 is: 36,108.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,400.25 : 129,607.80 = 24,070.75 : x
  2. Step 2: Convert to fraction form
    86,400.25/129,607.80 = 24,070.75/x
  3. Step 3: Cross multiply
    86,400.25x = 129,607.80 × 24,070.75
  4. Step 4: Simplify right side
    86,400.25x = 3,119,756,951.85
  5. Step 5: Solve for x
    x = 3,119,756,951.85/86,400.25
  6. Step 6: Final answer
    x = 36,108.19

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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.