Home / 74,498.09-111,746.19-18,338.90

Finding the Fourth Proportional to 74,498.09, 111,746.19 and 18,338.90

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Solution

The fourth proportional to 74,498.09, 111,746.19 and 18,338.90 is: 27,508.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,498.09 : 111,746.19 = 18,338.90 : x
  2. Step 2: Convert to fraction form
    74,498.09/111,746.19 = 18,338.90/x
  3. Step 3: Cross multiply
    74,498.09x = 111,746.19 × 18,338.90
  4. Step 4: Simplify right side
    74,498.09x = 2,049,302,203.79
  5. Step 5: Solve for x
    x = 2,049,302,203.79/74,498.09
  6. Step 6: Final answer
    x = 27,508.12

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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.