Home / 68,423.86-102,621.12-39,941.84

Finding the Fourth Proportional to 68,423.86, 102,621.12 and 39,941.84

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Solution

The fourth proportional to 68,423.86, 102,621.12 and 39,941.84 is: 59,904.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,423.86 : 102,621.12 = 39,941.84 : x
  2. Step 2: Convert to fraction form
    68,423.86/102,621.12 = 39,941.84/x
  3. Step 3: Cross multiply
    68,423.86x = 102,621.12 × 39,941.84
  4. Step 4: Simplify right side
    68,423.86x = 4,098,876,355.66
  5. Step 5: Solve for x
    x = 4,098,876,355.66/68,423.86
  6. Step 6: Final answer
    x = 59,904.20

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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.