Home / 90,236.40-124,524.72-49,949.30

Finding the Fourth Proportional to 90,236.40, 124,524.72 and 49,949.30

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Solution

The fourth proportional to 90,236.40, 124,524.72 and 49,949.30 is: 68,929.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,236.40 : 124,524.72 = 49,949.30 : x
  2. Step 2: Convert to fraction form
    90,236.40/124,524.72 = 49,949.30/x
  3. Step 3: Cross multiply
    90,236.40x = 124,524.72 × 49,949.30
  4. Step 4: Simplify right side
    90,236.40x = 6,219,921,974.07
  5. Step 5: Solve for x
    x = 6,219,921,974.07/90,236.40
  6. Step 6: Final answer
    x = 68,929.19

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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.