Home / 72,821.14-100,524.16-48,961.66

Finding the Fourth Proportional to 72,821.14, 100,524.16 and 48,961.66

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Solution

The fourth proportional to 72,821.14, 100,524.16 and 48,961.66 is: 67,587.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,821.14 : 100,524.16 = 48,961.66 : x
  2. Step 2: Convert to fraction form
    72,821.14/100,524.16 = 48,961.66/x
  3. Step 3: Cross multiply
    72,821.14x = 100,524.16 × 48,961.66
  4. Step 4: Simplify right side
    72,821.14x = 4,921,829,743.71
  5. Step 5: Solve for x
    x = 4,921,829,743.71/72,821.14
  6. Step 6: Final answer
    x = 67,587.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.