Home / 72,085.28-107,654.70-61,441.92

Finding the Fourth Proportional to 72,085.28, 107,654.70 and 61,441.92

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Solution

The fourth proportional to 72,085.28, 107,654.70 and 61,441.92 is: 91,759.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,085.28 : 107,654.70 = 61,441.92 : x
  2. Step 2: Convert to fraction form
    72,085.28/107,654.70 = 61,441.92/x
  3. Step 3: Cross multiply
    72,085.28x = 107,654.70 × 61,441.92
  4. Step 4: Simplify right side
    72,085.28x = 6,614,511,465.02
  5. Step 5: Solve for x
    x = 6,614,511,465.02/72,085.28
  6. Step 6: Final answer
    x = 91,759.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.