Home / 71,861.66-99,169.24-40,036.86

Finding the Fourth Proportional to 71,861.66, 99,169.24 and 40,036.86

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Solution

The fourth proportional to 71,861.66, 99,169.24 and 40,036.86 is: 55,250.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,861.66 : 99,169.24 = 40,036.86 : x
  2. Step 2: Convert to fraction form
    71,861.66/99,169.24 = 40,036.86/x
  3. Step 3: Cross multiply
    71,861.66x = 99,169.24 × 40,036.86
  4. Step 4: Simplify right side
    71,861.66x = 3,970,424,978.19
  5. Step 5: Solve for x
    x = 3,970,424,978.19/71,861.66
  6. Step 6: Final answer
    x = 55,250.95

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1.5x scale

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.