Home / 72,219.16-99,687.49-49,632.92

Finding the Fourth Proportional to 72,219.16, 99,687.49 and 49,632.92

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Solution

The fourth proportional to 72,219.16, 99,687.49 and 49,632.92 is: 68,510.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,219.16 : 99,687.49 = 49,632.92 : x
  2. Step 2: Convert to fraction form
    72,219.16/99,687.49 = 49,632.92/x
  3. Step 3: Cross multiply
    72,219.16x = 99,687.49 × 49,632.92
  4. Step 4: Simplify right side
    72,219.16x = 4,947,780,593.65
  5. Step 5: Solve for x
    x = 4,947,780,593.65/72,219.16
  6. Step 6: Final answer
    x = 68,510.64

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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.