Home / 74,917.60-112,333.20-28,175.20

Finding the Fourth Proportional to 74,917.60, 112,333.20 and 28,175.20

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Solution

The fourth proportional to 74,917.60, 112,333.20 and 28,175.20 is: 42,246.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,917.60 : 112,333.20 = 28,175.20 : x
  2. Step 2: Convert to fraction form
    74,917.60/112,333.20 = 28,175.20/x
  3. Step 3: Cross multiply
    74,917.60x = 112,333.20 × 28,175.20
  4. Step 4: Simplify right side
    74,917.60x = 3,165,010,376.64
  5. Step 5: Solve for x
    x = 3,165,010,376.64/74,917.60
  6. Step 6: Final answer
    x = 42,246.55

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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.