Home / 48,538.18-72,835.08-20,456.02

Finding the Fourth Proportional to 48,538.18, 72,835.08 and 20,456.02

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Solution

The fourth proportional to 48,538.18, 72,835.08 and 20,456.02 is: 30,695.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,538.18 : 72,835.08 = 20,456.02 : x
  2. Step 2: Convert to fraction form
    48,538.18/72,835.08 = 20,456.02/x
  3. Step 3: Cross multiply
    48,538.18x = 72,835.08 × 20,456.02
  4. Step 4: Simplify right side
    48,538.18x = 1,489,915,853.18
  5. Step 5: Solve for x
    x = 1,489,915,853.18/48,538.18
  6. Step 6: Final answer
    x = 30,695.75

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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.