Home / 48,551.16-72,791.10-20,470.08

Finding the Fourth Proportional to 48,551.16, 72,791.10 and 20,470.08

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Solution

The fourth proportional to 48,551.16, 72,791.10 and 20,470.08 is: 30,690.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,551.16 : 72,791.10 = 20,470.08 : x
  2. Step 2: Convert to fraction form
    48,551.16/72,791.10 = 20,470.08/x
  3. Step 3: Cross multiply
    48,551.16x = 72,791.10 × 20,470.08
  4. Step 4: Simplify right side
    48,551.16x = 1,490,039,640.29
  5. Step 5: Solve for x
    x = 1,490,039,640.29/48,551.16
  6. Step 6: Final answer
    x = 30,690.09

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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.