Home / 75,528.33-104,234.19-49,990.70

Finding the Fourth Proportional to 75,528.33, 104,234.19 and 49,990.70

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Solution

The fourth proportional to 75,528.33, 104,234.19 and 49,990.70 is: 68,990.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,528.33 : 104,234.19 = 49,990.70 : x
  2. Step 2: Convert to fraction form
    75,528.33/104,234.19 = 49,990.70/x
  3. Step 3: Cross multiply
    75,528.33x = 104,234.19 × 49,990.70
  4. Step 4: Simplify right side
    75,528.33x = 5,210,739,600.86
  5. Step 5: Solve for x
    x = 5,210,739,600.86/75,528.33
  6. Step 6: Final answer
    x = 68,990.53

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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.