Home / 80,603.28-120,925.38-47,351.46

Finding the Fourth Proportional to 80,603.28, 120,925.38 and 47,351.46

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Solution

The fourth proportional to 80,603.28, 120,925.38 and 47,351.46 is: 71,039.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,603.28 : 120,925.38 = 47,351.46 : x
  2. Step 2: Convert to fraction form
    80,603.28/120,925.38 = 47,351.46/x
  3. Step 3: Cross multiply
    80,603.28x = 120,925.38 × 47,351.46
  4. Step 4: Simplify right side
    80,603.28x = 5,725,993,294.05
  5. Step 5: Solve for x
    x = 5,725,993,294.05/80,603.28
  6. Step 6: Final answer
    x = 71,039.21

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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.