Home / 48,189.23-72,244.89-20,130.78

Finding the Fourth Proportional to 48,189.23, 72,244.89 and 20,130.78

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Solution

The fourth proportional to 48,189.23, 72,244.89 and 20,130.78 is: 30,179.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,189.23 : 72,244.89 = 20,130.78 : x
  2. Step 2: Convert to fraction form
    48,189.23/72,244.89 = 20,130.78/x
  3. Step 3: Cross multiply
    48,189.23x = 72,244.89 × 20,130.78
  4. Step 4: Simplify right side
    48,189.23x = 1,454,345,986.71
  5. Step 5: Solve for x
    x = 1,454,345,986.71/48,189.23
  6. Step 6: Final answer
    x = 30,179.90

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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.