Home / 66,518.27-99,773.76-40,215.95

Finding the Fourth Proportional to 66,518.27, 99,773.76 and 40,215.95

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Solution

The fourth proportional to 66,518.27, 99,773.76 and 40,215.95 is: 60,321.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,518.27 : 99,773.76 = 40,215.95 : x
  2. Step 2: Convert to fraction form
    66,518.27/99,773.76 = 40,215.95/x
  3. Step 3: Cross multiply
    66,518.27x = 99,773.76 × 40,215.95
  4. Step 4: Simplify right side
    66,518.27x = 4,012,496,543.47
  5. Step 5: Solve for x
    x = 4,012,496,543.47/66,518.27
  6. Step 6: Final answer
    x = 60,321.72

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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.