Home / 48,561.76-72,784.26-20,470.96

Finding the Fourth Proportional to 48,561.76, 72,784.26 and 20,470.96

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Solution

The fourth proportional to 48,561.76, 72,784.26 and 20,470.96 is: 30,681.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,561.76 : 72,784.26 = 20,470.96 : x
  2. Step 2: Convert to fraction form
    48,561.76/72,784.26 = 20,470.96/x
  3. Step 3: Cross multiply
    48,561.76x = 72,784.26 × 20,470.96
  4. Step 4: Simplify right side
    48,561.76x = 1,489,963,675.09
  5. Step 5: Solve for x
    x = 1,489,963,675.09/48,561.76
  6. Step 6: Final answer
    x = 30,681.83

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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.