Home / 72,280.46-99,747.24-40,446.92

Finding the Fourth Proportional to 72,280.46, 99,747.24 and 40,446.92

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Solution

The fourth proportional to 72,280.46, 99,747.24 and 40,446.92 is: 55,816.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,280.46 : 99,747.24 = 40,446.92 : x
  2. Step 2: Convert to fraction form
    72,280.46/99,747.24 = 40,446.92/x
  3. Step 3: Cross multiply
    72,280.46x = 99,747.24 × 40,446.92
  4. Step 4: Simplify right side
    72,280.46x = 4,034,468,636.50
  5. Step 5: Solve for x
    x = 4,034,468,636.50/72,280.46
  6. Step 6: Final answer
    x = 55,816.86

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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.