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Finding the Fourth Proportional to 74,398.39, 111,569.03 and 31,676.74

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Solution

The fourth proportional to 74,398.39, 111,569.03 and 31,676.74 is: 47,502.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,398.39 : 111,569.03 = 31,676.74 : x
  2. Step 2: Convert to fraction form
    74,398.39/111,569.03 = 31,676.74/x
  3. Step 3: Cross multiply
    74,398.39x = 111,569.03 × 31,676.74
  4. Step 4: Simplify right side
    74,398.39x = 3,534,143,155.36
  5. Step 5: Solve for x
    x = 3,534,143,155.36/74,398.39
  6. Step 6: Final answer
    x = 47,502.95

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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.