Home / 68,678.42-94,778.30-38,463.66

Finding the Fourth Proportional to 68,678.42, 94,778.30 and 38,463.66

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Solution

The fourth proportional to 68,678.42, 94,778.30 and 38,463.66 is: 53,081.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,678.42 : 94,778.30 = 38,463.66 : x
  2. Step 2: Convert to fraction form
    68,678.42/94,778.30 = 38,463.66/x
  3. Step 3: Cross multiply
    68,678.42x = 94,778.30 × 38,463.66
  4. Step 4: Simplify right side
    68,678.42x = 3,645,520,402.74
  5. Step 5: Solve for x
    x = 3,645,520,402.74/68,678.42
  6. Step 6: Final answer
    x = 53,081.02

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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.