Home / 99,071.76-148,618.02-42,917.56

Finding the Fourth Proportional to 99,071.76, 148,618.02 and 42,917.56

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Solution

The fourth proportional to 99,071.76, 148,618.02 and 42,917.56 is: 64,380.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,071.76 : 148,618.02 = 42,917.56 : x
  2. Step 2: Convert to fraction form
    99,071.76/148,618.02 = 42,917.56/x
  3. Step 3: Cross multiply
    99,071.76x = 148,618.02 × 42,917.56
  4. Step 4: Simplify right side
    99,071.76x = 6,378,322,790.43
  5. Step 5: Solve for x
    x = 6,378,322,790.43/99,071.76
  6. Step 6: Final answer
    x = 64,380.84

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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.