Home / 80,385.33-120,547.09-38,232.93

Finding the Fourth Proportional to 80,385.33, 120,547.09 and 38,232.93

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Solution

The fourth proportional to 80,385.33, 120,547.09 and 38,232.93 is: 57,334.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,385.33 : 120,547.09 = 38,232.93 : x
  2. Step 2: Convert to fraction form
    80,385.33/120,547.09 = 38,232.93/x
  3. Step 3: Cross multiply
    80,385.33x = 120,547.09 × 38,232.93
  4. Step 4: Simplify right side
    80,385.33x = 4,608,868,453.67
  5. Step 5: Solve for x
    x = 4,608,868,453.67/80,385.33
  6. Step 6: Final answer
    x = 57,334.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.