Home / 81,498.85-122,265.55-25,337.59

Finding the Fourth Proportional to 81,498.85, 122,265.55 and 25,337.59

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Solution

The fourth proportional to 81,498.85, 122,265.55 and 25,337.59 is: 38,011.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,498.85 : 122,265.55 = 25,337.59 : x
  2. Step 2: Convert to fraction form
    81,498.85/122,265.55 = 25,337.59/x
  3. Step 3: Cross multiply
    81,498.85x = 122,265.55 × 25,337.59
  4. Step 4: Simplify right side
    81,498.85x = 3,097,913,765.70
  5. Step 5: Solve for x
    x = 3,097,913,765.70/81,498.85
  6. Step 6: Final answer
    x = 38,011.75

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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.