Home / 72,631.68-100,236-54,695.04

Finding the Fourth Proportional to 72,631.68, 100,236 and 54,695.04

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Solution

The fourth proportional to 72,631.68, 100,236 and 54,695.04 is: 75,482.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,631.68 : 100,236 = 54,695.04 : x
  2. Step 2: Convert to fraction form
    72,631.68/100,236 = 54,695.04/x
  3. Step 3: Cross multiply
    72,631.68x = 100,236 × 54,695.04
  4. Step 4: Simplify right side
    72,631.68x = 5,482,412,029.44
  5. Step 5: Solve for x
    x = 5,482,412,029.44/72,631.68
  6. Step 6: Final answer
    x = 75,482.38

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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.