Home / 72,060.92-99,441.42-40,231.16

Finding the Fourth Proportional to 72,060.92, 99,441.42 and 40,231.16

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Solution

The fourth proportional to 72,060.92, 99,441.42 and 40,231.16 is: 55,517.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,060.92 : 99,441.42 = 40,231.16 : x
  2. Step 2: Convert to fraction form
    72,060.92/99,441.42 = 40,231.16/x
  3. Step 3: Cross multiply
    72,060.92x = 99,441.42 × 40,231.16
  4. Step 4: Simplify right side
    72,060.92x = 4,000,643,678.65
  5. Step 5: Solve for x
    x = 4,000,643,678.65/72,060.92
  6. Step 6: Final answer
    x = 55,517.52

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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.