Home / 74,910.74-112,382.87-28,164.02

Finding the Fourth Proportional to 74,910.74, 112,382.87 and 28,164.02

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Solution

The fourth proportional to 74,910.74, 112,382.87 and 28,164.02 is: 42,252.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,910.74 : 112,382.87 = 28,164.02 : x
  2. Step 2: Convert to fraction form
    74,910.74/112,382.87 = 28,164.02/x
  3. Step 3: Cross multiply
    74,910.74x = 112,382.87 × 28,164.02
  4. Step 4: Simplify right side
    74,910.74x = 3,165,153,398.34
  5. Step 5: Solve for x
    x = 3,165,153,398.34/74,910.74
  6. Step 6: Final answer
    x = 42,252.33

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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.