Home / 74,918.60-112,334.70-28,176.20

Finding the Fourth Proportional to 74,918.60, 112,334.70 and 28,176.20

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Solution

The fourth proportional to 74,918.60, 112,334.70 and 28,176.20 is: 42,248.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,918.60 : 112,334.70 = 28,176.20 : x
  2. Step 2: Convert to fraction form
    74,918.60/112,334.70 = 28,176.20/x
  3. Step 3: Cross multiply
    74,918.60x = 112,334.70 × 28,176.20
  4. Step 4: Simplify right side
    74,918.60x = 3,165,164,974.14
  5. Step 5: Solve for x
    x = 3,165,164,974.14/74,918.60
  6. Step 6: Final answer
    x = 42,248.05

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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.