Home / 68,344.40-102,516.60-57,285.20

Finding the Fourth Proportional to 68,344.40, 102,516.60 and 57,285.20

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Solution

The fourth proportional to 68,344.40, 102,516.60 and 57,285.20 is: 85,927.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,344.40 : 102,516.60 = 57,285.20 : x
  2. Step 2: Convert to fraction form
    68,344.40/102,516.60 = 57,285.20/x
  3. Step 3: Cross multiply
    68,344.40x = 102,516.60 × 57,285.20
  4. Step 4: Simplify right side
    68,344.40x = 5,872,683,934.32
  5. Step 5: Solve for x
    x = 5,872,683,934.32/68,344.40
  6. Step 6: Final answer
    x = 85,927.80

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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.