Home / 72,077.80-99,471.36-40,246.96

Finding the Fourth Proportional to 72,077.80, 99,471.36 and 40,246.96

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Solution

The fourth proportional to 72,077.80, 99,471.36 and 40,246.96 is: 55,543.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,077.80 : 99,471.36 = 40,246.96 : x
  2. Step 2: Convert to fraction form
    72,077.80/99,471.36 = 40,246.96/x
  3. Step 3: Cross multiply
    72,077.80x = 99,471.36 × 40,246.96
  4. Step 4: Simplify right side
    72,077.80x = 4,003,419,847.07
  5. Step 5: Solve for x
    x = 4,003,419,847.07/72,077.80
  6. Step 6: Final answer
    x = 55,543.04

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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.