Home / 80,901.85-121,257.46-36,476.59

Finding the Fourth Proportional to 80,901.85, 121,257.46 and 36,476.59

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Solution

The fourth proportional to 80,901.85, 121,257.46 and 36,476.59 is: 54,671.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,901.85 : 121,257.46 = 36,476.59 : x
  2. Step 2: Convert to fraction form
    80,901.85/121,257.46 = 36,476.59/x
  3. Step 3: Cross multiply
    80,901.85x = 121,257.46 × 36,476.59
  4. Step 4: Simplify right side
    80,901.85x = 4,423,058,258.53
  5. Step 5: Solve for x
    x = 4,423,058,258.53/80,901.85
  6. Step 6: Final answer
    x = 54,671.91

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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.