Home / 74,844.10-112,309.35-28,101.70

Finding the Fourth Proportional to 74,844.10, 112,309.35 and 28,101.70

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Solution

The fourth proportional to 74,844.10, 112,309.35 and 28,101.70 is: 42,168.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,844.10 : 112,309.35 = 28,101.70 : x
  2. Step 2: Convert to fraction form
    74,844.10/112,309.35 = 28,101.70/x
  3. Step 3: Cross multiply
    74,844.10x = 112,309.35 × 28,101.70
  4. Step 4: Simplify right side
    74,844.10x = 3,156,083,660.90
  5. Step 5: Solve for x
    x = 3,156,083,660.90/74,844.10
  6. Step 6: Final answer
    x = 42,168.77

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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.