Home / 68,233.10-102,365.22-20,854.93

Finding the Fourth Proportional to 68,233.10, 102,365.22 and 20,854.93

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Solution

The fourth proportional to 68,233.10, 102,365.22 and 20,854.93 is: 31,287.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,233.10 : 102,365.22 = 20,854.93 : x
  2. Step 2: Convert to fraction form
    68,233.10/102,365.22 = 20,854.93/x
  3. Step 3: Cross multiply
    68,233.10x = 102,365.22 × 20,854.93
  4. Step 4: Simplify right side
    68,233.10x = 2,134,819,497.53
  5. Step 5: Solve for x
    x = 2,134,819,497.53/68,233.10
  6. Step 6: Final answer
    x = 31,287.16

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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.