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Finding the Fourth Proportional to 68,685.70, 94,775.24 and 38,472.29

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Solution

The fourth proportional to 68,685.70, 94,775.24 and 38,472.29 is: 53,085.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,685.70 : 94,775.24 = 38,472.29 : x
  2. Step 2: Convert to fraction form
    68,685.70/94,775.24 = 38,472.29/x
  3. Step 3: Cross multiply
    68,685.70x = 94,775.24 × 38,472.29
  4. Step 4: Simplify right side
    68,685.70x = 3,646,220,654.16
  5. Step 5: Solve for x
    x = 3,646,220,654.16/68,685.70
  6. Step 6: Final answer
    x = 53,085.59

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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.