Home / 68,721.14-94,840.64-40,432.29

Finding the Fourth Proportional to 68,721.14, 94,840.64 and 40,432.29

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Solution

The fourth proportional to 68,721.14, 94,840.64 and 40,432.29 is: 55,799.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,721.14 : 94,840.64 = 40,432.29 : x
  2. Step 2: Convert to fraction form
    68,721.14/94,840.64 = 40,432.29/x
  3. Step 3: Cross multiply
    68,721.14x = 94,840.64 × 40,432.29
  4. Step 4: Simplify right side
    68,721.14x = 3,834,624,058.10
  5. Step 5: Solve for x
    x = 3,834,624,058.10/68,721.14
  6. Step 6: Final answer
    x = 55,799.78

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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.