Home / 90,077.12-124,301.58-49,788.48

Finding the Fourth Proportional to 90,077.12, 124,301.58 and 49,788.48

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Solution

The fourth proportional to 90,077.12, 124,301.58 and 49,788.48 is: 68,705.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,077.12 : 124,301.58 = 49,788.48 : x
  2. Step 2: Convert to fraction form
    90,077.12/124,301.58 = 49,788.48/x
  3. Step 3: Cross multiply
    90,077.12x = 124,301.58 × 49,788.48
  4. Step 4: Simplify right side
    90,077.12x = 6,188,786,729.80
  5. Step 5: Solve for x
    x = 6,188,786,729.80/90,077.12
  6. Step 6: Final answer
    x = 68,705.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.