Home / 68,614.20-94,689.54-38,400.66

Finding the Fourth Proportional to 68,614.20, 94,689.54 and 38,400.66

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Solution

The fourth proportional to 68,614.20, 94,689.54 and 38,400.66 is: 52,994.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,614.20 : 94,689.54 = 38,400.66 : x
  2. Step 2: Convert to fraction form
    68,614.20/94,689.54 = 38,400.66/x
  3. Step 3: Cross multiply
    68,614.20x = 94,689.54 × 38,400.66
  4. Step 4: Simplify right side
    68,614.20x = 3,636,140,831.10
  5. Step 5: Solve for x
    x = 3,636,140,831.10/68,614.20
  6. Step 6: Final answer
    x = 52,994.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.