Home / 75,095.66-103,631.76-40,640.34

Finding the Fourth Proportional to 75,095.66, 103,631.76 and 40,640.34

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Solution

The fourth proportional to 75,095.66, 103,631.76 and 40,640.34 is: 56,083.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,095.66 : 103,631.76 = 40,640.34 : x
  2. Step 2: Convert to fraction form
    75,095.66/103,631.76 = 40,640.34/x
  3. Step 3: Cross multiply
    75,095.66x = 103,631.76 × 40,640.34
  4. Step 4: Simplify right side
    75,095.66x = 4,211,629,961.20
  5. Step 5: Solve for x
    x = 4,211,629,961.20/75,095.66
  6. Step 6: Final answer
    x = 56,083.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.