Home / 68,929.16-102,926.81-54,729.86

Finding the Fourth Proportional to 68,929.16, 102,926.81 and 54,729.86

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Solution

The fourth proportional to 68,929.16, 102,926.81 and 54,729.86 is: 81,724.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,929.16 : 102,926.81 = 54,729.86 : x
  2. Step 2: Convert to fraction form
    68,929.16/102,926.81 = 54,729.86/x
  3. Step 3: Cross multiply
    68,929.16x = 102,926.81 × 54,729.86
  4. Step 4: Simplify right side
    68,929.16x = 5,633,169,113.26
  5. Step 5: Solve for x
    x = 5,633,169,113.26/68,929.16
  6. Step 6: Final answer
    x = 81,724.04

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.