Home / 72,122.17-108,172.32-25,364.11

Finding the Fourth Proportional to 72,122.17, 108,172.32 and 25,364.11

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Solution

The fourth proportional to 72,122.17, 108,172.32 and 25,364.11 is: 38,042.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,122.17 : 108,172.32 = 25,364.11 : x
  2. Step 2: Convert to fraction form
    72,122.17/108,172.32 = 25,364.11/x
  3. Step 3: Cross multiply
    72,122.17x = 108,172.32 × 25,364.11
  4. Step 4: Simplify right side
    72,122.17x = 2,743,694,460.71
  5. Step 5: Solve for x
    x = 2,743,694,460.71/72,122.17
  6. Step 6: Final answer
    x = 38,042.32

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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.