Home / 63,990.38-88,313.58-35,705.90

Finding the Fourth Proportional to 63,990.38, 88,313.58 and 35,705.90

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Solution

The fourth proportional to 63,990.38, 88,313.58 and 35,705.90 is: 49,277.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,990.38 : 88,313.58 = 35,705.90 : x
  2. Step 2: Convert to fraction form
    63,990.38/88,313.58 = 35,705.90/x
  3. Step 3: Cross multiply
    63,990.38x = 88,313.58 × 35,705.90
  4. Step 4: Simplify right side
    63,990.38x = 3,153,315,856.12
  5. Step 5: Solve for x
    x = 3,153,315,856.12/63,990.38
  6. Step 6: Final answer
    x = 49,277.97

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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.