Home / 87,572.40-131,272.20-43,162.80

Finding the Fourth Proportional to 87,572.40, 131,272.20 and 43,162.80

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Solution

The fourth proportional to 87,572.40, 131,272.20 and 43,162.80 is: 64,701.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,572.40 : 131,272.20 = 43,162.80 : x
  2. Step 2: Convert to fraction form
    87,572.40/131,272.20 = 43,162.80/x
  3. Step 3: Cross multiply
    87,572.40x = 131,272.20 × 43,162.80
  4. Step 4: Simplify right side
    87,572.40x = 5,666,075,714.16
  5. Step 5: Solve for x
    x = 5,666,075,714.16/87,572.40
  6. Step 6: Final answer
    x = 64,701.62

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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.