Home / 74,928.96-112,380.48-25,680.96

Finding the Fourth Proportional to 74,928.96, 112,380.48 and 25,680.96

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Solution

The fourth proportional to 74,928.96, 112,380.48 and 25,680.96 is: 38,517.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,928.96 : 112,380.48 = 25,680.96 : x
  2. Step 2: Convert to fraction form
    74,928.96/112,380.48 = 25,680.96/x
  3. Step 3: Cross multiply
    74,928.96x = 112,380.48 × 25,680.96
  4. Step 4: Simplify right side
    74,928.96x = 2,886,038,611.66
  5. Step 5: Solve for x
    x = 2,886,038,611.66/74,928.96
  6. Step 6: Final answer
    x = 38,517.00

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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.