Home / 75,938.20-104,725.38-57,999.88

Finding the Fourth Proportional to 75,938.20, 104,725.38 and 57,999.88

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Solution

The fourth proportional to 75,938.20, 104,725.38 and 57,999.88 is: 79,986.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,938.20 : 104,725.38 = 57,999.88 : x
  2. Step 2: Convert to fraction form
    75,938.20/104,725.38 = 57,999.88/x
  3. Step 3: Cross multiply
    75,938.20x = 104,725.38 × 57,999.88
  4. Step 4: Simplify right side
    75,938.20x = 6,074,059,472.95
  5. Step 5: Solve for x
    x = 6,074,059,472.95/75,938.20
  6. Step 6: Final answer
    x = 79,986.88

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1.5x scale

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.