Home / 87,637.04-120,939.18-47,350.80

Finding the Fourth Proportional to 87,637.04, 120,939.18 and 47,350.80

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Solution

The fourth proportional to 87,637.04, 120,939.18 and 47,350.80 is: 65,344.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,637.04 : 120,939.18 = 47,350.80 : x
  2. Step 2: Convert to fraction form
    87,637.04/120,939.18 = 47,350.80/x
  3. Step 3: Cross multiply
    87,637.04x = 120,939.18 × 47,350.80
  4. Step 4: Simplify right side
    87,637.04x = 5,726,566,924.34
  5. Step 5: Solve for x
    x = 5,726,566,924.34/87,637.04
  6. Step 6: Final answer
    x = 65,344.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.