Home / 68,435.40-102,422.70-62,905.80

Finding the Fourth Proportional to 68,435.40, 102,422.70 and 62,905.80

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Solution

The fourth proportional to 68,435.40, 102,422.70 and 62,905.80 is: 94,146.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,435.40 : 102,422.70 = 62,905.80 : x
  2. Step 2: Convert to fraction form
    68,435.40/102,422.70 = 62,905.80/x
  3. Step 3: Cross multiply
    68,435.40x = 102,422.70 × 62,905.80
  4. Step 4: Simplify right side
    68,435.40x = 6,442,981,881.66
  5. Step 5: Solve for x
    x = 6,442,981,881.66/68,435.40
  6. Step 6: Final answer
    x = 94,146.92

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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.