Home / 74,762.38-112,132.43-30,388.96

Finding the Fourth Proportional to 74,762.38, 112,132.43 and 30,388.96

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Solution

The fourth proportional to 74,762.38, 112,132.43 and 30,388.96 is: 45,578.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,762.38 : 112,132.43 = 30,388.96 : x
  2. Step 2: Convert to fraction form
    74,762.38/112,132.43 = 30,388.96/x
  3. Step 3: Cross multiply
    74,762.38x = 112,132.43 × 30,388.96
  4. Step 4: Simplify right side
    74,762.38x = 3,407,587,929.97
  5. Step 5: Solve for x
    x = 3,407,587,929.97/74,762.38
  6. Step 6: Final answer
    x = 45,578.91

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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.