Home / 72,382.16-99,882.60-40,550.96

Finding the Fourth Proportional to 72,382.16, 99,882.60 and 40,550.96

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Solution

The fourth proportional to 72,382.16, 99,882.60 and 40,550.96 is: 55,957.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,382.16 : 99,882.60 = 40,550.96 : x
  2. Step 2: Convert to fraction form
    72,382.16/99,882.60 = 40,550.96/x
  3. Step 3: Cross multiply
    72,382.16x = 99,882.60 × 40,550.96
  4. Step 4: Simplify right side
    72,382.16x = 4,050,335,317.30
  5. Step 5: Solve for x
    x = 4,050,335,317.30/72,382.16
  6. Step 6: Final answer
    x = 55,957.65

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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.