Home / 68,924.90-103,401.19-31,474.92

Finding the Fourth Proportional to 68,924.90, 103,401.19 and 31,474.92

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Solution

The fourth proportional to 68,924.90, 103,401.19 and 31,474.92 is: 47,218.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,924.90 : 103,401.19 = 31,474.92 : x
  2. Step 2: Convert to fraction form
    68,924.90/103,401.19 = 31,474.92/x
  3. Step 3: Cross multiply
    68,924.90x = 103,401.19 × 31,474.92
  4. Step 4: Simplify right side
    68,924.90x = 3,254,543,816.82
  5. Step 5: Solve for x
    x = 3,254,543,816.82/68,924.90
  6. Step 6: Final answer
    x = 47,218.70

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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.