Home / 80,797.40-121,155.54-47,074.32

Finding the Fourth Proportional to 80,797.40, 121,155.54 and 47,074.32

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Solution

The fourth proportional to 80,797.40, 121,155.54 and 47,074.32 is: 70,587.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,797.40 : 121,155.54 = 47,074.32 : x
  2. Step 2: Convert to fraction form
    80,797.40/121,155.54 = 47,074.32/x
  3. Step 3: Cross multiply
    80,797.40x = 121,155.54 × 47,074.32
  4. Step 4: Simplify right side
    80,797.40x = 5,703,314,659.73
  5. Step 5: Solve for x
    x = 5,703,314,659.73/80,797.40
  6. Step 6: Final answer
    x = 70,587.85

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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.