Home / 74,332.11-111,497.22-18,172.72

Finding the Fourth Proportional to 74,332.11, 111,497.22 and 18,172.72

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Solution

The fourth proportional to 74,332.11, 111,497.22 and 18,172.72 is: 27,258.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,332.11 : 111,497.22 = 18,172.72 : x
  2. Step 2: Convert to fraction form
    74,332.11/111,497.22 = 18,172.72/x
  3. Step 3: Cross multiply
    74,332.11x = 111,497.22 × 18,172.72
  4. Step 4: Simplify right side
    74,332.11x = 2,026,207,848.10
  5. Step 5: Solve for x
    x = 2,026,207,848.10/74,332.11
  6. Step 6: Final answer
    x = 27,258.85

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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.