Home / 92,020.92-138,031.60-27,979.62

Finding the Fourth Proportional to 92,020.92, 138,031.60 and 27,979.62

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Solution

The fourth proportional to 92,020.92, 138,031.60 and 27,979.62 is: 41,969.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,020.92 : 138,031.60 = 27,979.62 : x
  2. Step 2: Convert to fraction form
    92,020.92/138,031.60 = 27,979.62/x
  3. Step 3: Cross multiply
    92,020.92x = 138,031.60 × 27,979.62
  4. Step 4: Simplify right side
    92,020.92x = 3,862,071,715.99
  5. Step 5: Solve for x
    x = 3,862,071,715.99/92,020.92
  6. Step 6: Final answer
    x = 41,969.50

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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.