Home / 94,235.28-141,378.42-31,905.78

Finding the Fourth Proportional to 94,235.28, 141,378.42 and 31,905.78

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Solution

The fourth proportional to 94,235.28, 141,378.42 and 31,905.78 is: 47,867.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,235.28 : 141,378.42 = 31,905.78 : x
  2. Step 2: Convert to fraction form
    94,235.28/141,378.42 = 31,905.78/x
  3. Step 3: Cross multiply
    94,235.28x = 141,378.42 × 31,905.78
  4. Step 4: Simplify right side
    94,235.28x = 4,510,788,765.27
  5. Step 5: Solve for x
    x = 4,510,788,765.27/94,235.28
  6. Step 6: Final answer
    x = 47,867.30

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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.