Home / 92,092.79-138,192.14-38,780.56

Finding the Fourth Proportional to 92,092.79, 138,192.14 and 38,780.56

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Solution

The fourth proportional to 92,092.79, 138,192.14 and 38,780.56 is: 58,193.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,092.79 : 138,192.14 = 38,780.56 : x
  2. Step 2: Convert to fraction form
    92,092.79/138,192.14 = 38,780.56/x
  3. Step 3: Cross multiply
    92,092.79x = 138,192.14 × 38,780.56
  4. Step 4: Simplify right side
    92,092.79x = 5,359,168,576.80
  5. Step 5: Solve for x
    x = 5,359,168,576.80/92,092.79
  6. Step 6: Final answer
    x = 58,193.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.