Home / 72,865.11-109,276.70-30,754.68

Finding the Fourth Proportional to 72,865.11, 109,276.70 and 30,754.68

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Solution

The fourth proportional to 72,865.11, 109,276.70 and 30,754.68 is: 46,123.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,865.11 : 109,276.70 = 30,754.68 : x
  2. Step 2: Convert to fraction form
    72,865.11/109,276.70 = 30,754.68/x
  3. Step 3: Cross multiply
    72,865.11x = 109,276.70 × 30,754.68
  4. Step 4: Simplify right side
    72,865.11x = 3,360,770,016.84
  5. Step 5: Solve for x
    x = 3,360,770,016.84/72,865.11
  6. Step 6: Final answer
    x = 46,123.17

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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.