Home / 98,928-148,435.20-36,581.76

Finding the Fourth Proportional to 98,928, 148,435.20 and 36,581.76

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Solution

The fourth proportional to 98,928, 148,435.20 and 36,581.76 is: 54,888.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,928 : 148,435.20 = 36,581.76 : x
  2. Step 2: Convert to fraction form
    98,928/148,435.20 = 36,581.76/x
  3. Step 3: Cross multiply
    98,928x = 148,435.20 × 36,581.76
  4. Step 4: Simplify right side
    98,928x = 5,430,020,861.95
  5. Step 5: Solve for x
    x = 5,430,020,861.95/98,928
  6. Step 6: Final answer
    x = 54,888.61

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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.