Home / 72,088.05-108,142.44-22,172.34

Finding the Fourth Proportional to 72,088.05, 108,142.44 and 22,172.34

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Solution

The fourth proportional to 72,088.05, 108,142.44 and 22,172.34 is: 33,261.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,088.05 : 108,142.44 = 22,172.34 : x
  2. Step 2: Convert to fraction form
    72,088.05/108,142.44 = 22,172.34/x
  3. Step 3: Cross multiply
    72,088.05x = 108,142.44 × 22,172.34
  4. Step 4: Simplify right side
    72,088.05x = 2,397,770,948.11
  5. Step 5: Solve for x
    x = 2,397,770,948.11/72,088.05
  6. Step 6: Final answer
    x = 33,261.70

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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.