Home / 68,433.60-102,516.48-61,003.20

Finding the Fourth Proportional to 68,433.60, 102,516.48 and 61,003.20

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Solution

The fourth proportional to 68,433.60, 102,516.48 and 61,003.20 is: 91,385.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,433.60 : 102,516.48 = 61,003.20 : x
  2. Step 2: Convert to fraction form
    68,433.60/102,516.48 = 61,003.20/x
  3. Step 3: Cross multiply
    68,433.60x = 102,516.48 × 61,003.20
  4. Step 4: Simplify right side
    68,433.60x = 6,253,833,332.74
  5. Step 5: Solve for x
    x = 6,253,833,332.74/68,433.60
  6. Step 6: Final answer
    x = 91,385.42

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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.