Home / 87,549.20-131,323.80-82,365.20

Finding the Fourth Proportional to 87,549.20, 131,323.80 and 82,365.20

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Solution

The fourth proportional to 87,549.20, 131,323.80 and 82,365.20 is: 123,547.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,549.20 : 131,323.80 = 82,365.20 : x
  2. Step 2: Convert to fraction form
    87,549.20/131,323.80 = 82,365.20/x
  3. Step 3: Cross multiply
    87,549.20x = 131,323.80 × 82,365.20
  4. Step 4: Simplify right side
    87,549.20x = 10,816,511,051.76
  5. Step 5: Solve for x
    x = 10,816,511,051.76/87,549.20
  6. Step 6: Final answer
    x = 123,547.80

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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.