Home / 48,570.74-72,812.89-18,981.85

Finding the Fourth Proportional to 48,570.74, 72,812.89 and 18,981.85

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Solution

The fourth proportional to 48,570.74, 72,812.89 and 18,981.85 is: 28,455.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,570.74 : 72,812.89 = 18,981.85 : x
  2. Step 2: Convert to fraction form
    48,570.74/72,812.89 = 18,981.85/x
  3. Step 3: Cross multiply
    48,570.74x = 72,812.89 × 18,981.85
  4. Step 4: Simplify right side
    48,570.74x = 1,382,123,356.05
  5. Step 5: Solve for x
    x = 1,382,123,356.05/48,570.74
  6. Step 6: Final answer
    x = 28,455.88

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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.