Home / 48,538.52-72,778.04-18,921.75

Finding the Fourth Proportional to 48,538.52, 72,778.04 and 18,921.75

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Solution

The fourth proportional to 48,538.52, 72,778.04 and 18,921.75 is: 28,371.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,538.52 : 72,778.04 = 18,921.75 : x
  2. Step 2: Convert to fraction form
    48,538.52/72,778.04 = 18,921.75/x
  3. Step 3: Cross multiply
    48,538.52x = 72,778.04 × 18,921.75
  4. Step 4: Simplify right side
    48,538.52x = 1,377,087,783.76
  5. Step 5: Solve for x
    x = 1,377,087,783.76/48,538.52
  6. Step 6: Final answer
    x = 28,371.03

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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.