Home / 80,482.19-120,725.82-38,366.87

Finding the Fourth Proportional to 80,482.19, 120,725.82 and 38,366.87

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Solution

The fourth proportional to 80,482.19, 120,725.82 and 38,366.87 is: 57,551.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,482.19 : 120,725.82 = 38,366.87 : x
  2. Step 2: Convert to fraction form
    80,482.19/120,725.82 = 38,366.87/x
  3. Step 3: Cross multiply
    80,482.19x = 120,725.82 × 38,366.87
  4. Step 4: Simplify right side
    80,482.19x = 4,631,871,237.95
  5. Step 5: Solve for x
    x = 4,631,871,237.95/80,482.19
  6. Step 6: Final answer
    x = 57,551.51

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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.