Home / 48,078.35-72,117.20-19,615.19

Finding the Fourth Proportional to 48,078.35, 72,117.20 and 19,615.19

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Solution

The fourth proportional to 48,078.35, 72,117.20 and 19,615.19 is: 29,422.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,078.35 : 72,117.20 = 19,615.19 : x
  2. Step 2: Convert to fraction form
    48,078.35/72,117.20 = 19,615.19/x
  3. Step 3: Cross multiply
    48,078.35x = 72,117.20 × 19,615.19
  4. Step 4: Simplify right side
    48,078.35x = 1,414,592,121.61
  5. Step 5: Solve for x
    x = 1,414,592,121.61/48,078.35
  6. Step 6: Final answer
    x = 29,422.65

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1.5x scale

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.