Home / 68,612.17-94,686.08-38,400.82

Finding the Fourth Proportional to 68,612.17, 94,686.08 and 38,400.82

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Solution

The fourth proportional to 68,612.17, 94,686.08 and 38,400.82 is: 52,993.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,612.17 : 94,686.08 = 38,400.82 : x
  2. Step 2: Convert to fraction form
    68,612.17/94,686.08 = 38,400.82/x
  3. Step 3: Cross multiply
    68,612.17x = 94,686.08 × 38,400.82
  4. Step 4: Simplify right side
    68,612.17x = 3,636,022,901.87
  5. Step 5: Solve for x
    x = 3,636,022,901.87/68,612.17
  6. Step 6: Final answer
    x = 52,993.85

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1.5x scale

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.