Home / 80,920.44-111,667.91-45,109.71

Finding the Fourth Proportional to 80,920.44, 111,667.91 and 45,109.71

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Solution

The fourth proportional to 80,920.44, 111,667.91 and 45,109.71 is: 62,250.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,920.44 : 111,667.91 = 45,109.71 : x
  2. Step 2: Convert to fraction form
    80,920.44/111,667.91 = 45,109.71/x
  3. Step 3: Cross multiply
    80,920.44x = 111,667.91 × 45,109.71
  4. Step 4: Simplify right side
    80,920.44x = 5,037,306,810.86
  5. Step 5: Solve for x
    x = 5,037,306,810.86/80,920.44
  6. Step 6: Final answer
    x = 62,250.12

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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.