Home / 86,550.20-129,825.30-49,095.80

Finding the Fourth Proportional to 86,550.20, 129,825.30 and 49,095.80

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Solution

The fourth proportional to 86,550.20, 129,825.30 and 49,095.80 is: 73,643.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,550.20 : 129,825.30 = 49,095.80 : x
  2. Step 2: Convert to fraction form
    86,550.20/129,825.30 = 49,095.80/x
  3. Step 3: Cross multiply
    86,550.20x = 129,825.30 × 49,095.80
  4. Step 4: Simplify right side
    86,550.20x = 6,373,876,963.74
  5. Step 5: Solve for x
    x = 6,373,876,963.74/86,550.20
  6. Step 6: Final answer
    x = 73,643.70

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1.5x scale

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.