Home / 68,946.56-95,146.20-39,138.56

Finding the Fourth Proportional to 68,946.56, 95,146.20 and 39,138.56

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Solution

The fourth proportional to 68,946.56, 95,146.20 and 39,138.56 is: 54,011.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,946.56 : 95,146.20 = 39,138.56 : x
  2. Step 2: Convert to fraction form
    68,946.56/95,146.20 = 39,138.56/x
  3. Step 3: Cross multiply
    68,946.56x = 95,146.20 × 39,138.56
  4. Step 4: Simplify right side
    68,946.56x = 3,723,885,257.47
  5. Step 5: Solve for x
    x = 3,723,885,257.47/68,946.56
  6. Step 6: Final answer
    x = 54,011.18

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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.