Home / 80,538.72-111,143.52-44,728.80

Finding the Fourth Proportional to 80,538.72, 111,143.52 and 44,728.80

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Solution

The fourth proportional to 80,538.72, 111,143.52 and 44,728.80 is: 61,725.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,538.72 : 111,143.52 = 44,728.80 : x
  2. Step 2: Convert to fraction form
    80,538.72/111,143.52 = 44,728.80/x
  3. Step 3: Cross multiply
    80,538.72x = 111,143.52 × 44,728.80
  4. Step 4: Simplify right side
    80,538.72x = 4,971,316,277.38
  5. Step 5: Solve for x
    x = 4,971,316,277.38/80,538.72
  6. Step 6: Final answer
    x = 61,725.79

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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.