Home / 66,678.06-99,947.97-31,591.02

Finding the Fourth Proportional to 66,678.06, 99,947.97 and 31,591.02

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Solution

The fourth proportional to 66,678.06, 99,947.97 and 31,591.02 is: 47,353.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,678.06 : 99,947.97 = 31,591.02 : x
  2. Step 2: Convert to fraction form
    66,678.06/99,947.97 = 31,591.02/x
  3. Step 3: Cross multiply
    66,678.06x = 99,947.97 × 31,591.02
  4. Step 4: Simplify right side
    66,678.06x = 3,157,458,319.23
  5. Step 5: Solve for x
    x = 3,157,458,319.23/66,678.06
  6. Step 6: Final answer
    x = 47,353.78

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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.