Home / 48,101.12-72,151.76-20,020.80

Finding the Fourth Proportional to 48,101.12, 72,151.76 and 20,020.80

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Solution

The fourth proportional to 48,101.12, 72,151.76 and 20,020.80 is: 30,031.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,101.12 : 72,151.76 = 20,020.80 : x
  2. Step 2: Convert to fraction form
    48,101.12/72,151.76 = 20,020.80/x
  3. Step 3: Cross multiply
    48,101.12x = 72,151.76 × 20,020.80
  4. Step 4: Simplify right side
    48,101.12x = 1,444,535,956.61
  5. Step 5: Solve for x
    x = 1,444,535,956.61/48,101.12
  6. Step 6: Final answer
    x = 30,031.23

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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.