Home / 68,949.18-103,389.72-40,493.28

Finding the Fourth Proportional to 68,949.18, 103,389.72 and 40,493.28

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Solution

The fourth proportional to 68,949.18, 103,389.72 and 40,493.28 is: 60,719.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,949.18 : 103,389.72 = 40,493.28 : x
  2. Step 2: Convert to fraction form
    68,949.18/103,389.72 = 40,493.28/x
  3. Step 3: Cross multiply
    68,949.18x = 103,389.72 × 40,493.28
  4. Step 4: Simplify right side
    68,949.18x = 4,186,588,881.08
  5. Step 5: Solve for x
    x = 4,186,588,881.08/68,949.18
  6. Step 6: Final answer
    x = 60,719.92

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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.