Home / 72,730.40-109,100.21-25,343.57

Finding the Fourth Proportional to 72,730.40, 109,100.21 and 25,343.57

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Solution

The fourth proportional to 72,730.40, 109,100.21 and 25,343.57 is: 38,016.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,730.40 : 109,100.21 = 25,343.57 : x
  2. Step 2: Convert to fraction form
    72,730.40/109,100.21 = 25,343.57/x
  3. Step 3: Cross multiply
    72,730.40x = 109,100.21 × 25,343.57
  4. Step 4: Simplify right side
    72,730.40x = 2,764,988,955.18
  5. Step 5: Solve for x
    x = 2,764,988,955.18/72,730.40
  6. Step 6: Final answer
    x = 38,016.97

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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.