Home / 60,127.29-90,189.99-20,684.75

Finding the Fourth Proportional to 60,127.29, 90,189.99 and 20,684.75

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Solution

The fourth proportional to 60,127.29, 90,189.99 and 20,684.75 is: 31,026.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,127.29 : 90,189.99 = 20,684.75 : x
  2. Step 2: Convert to fraction form
    60,127.29/90,189.99 = 20,684.75/x
  3. Step 3: Cross multiply
    60,127.29x = 90,189.99 × 20,684.75
  4. Step 4: Simplify right side
    60,127.29x = 1,865,556,944.70
  5. Step 5: Solve for x
    x = 1,865,556,944.70/60,127.29
  6. Step 6: Final answer
    x = 31,026.79

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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.