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Finding the Fourth Proportional to 60,229.48, 90,356.34 and 20,788.12

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Solution

The fourth proportional to 60,229.48, 90,356.34 and 20,788.12 is: 31,186.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,229.48 : 90,356.34 = 20,788.12 : x
  2. Step 2: Convert to fraction form
    60,229.48/90,356.34 = 20,788.12/x
  3. Step 3: Cross multiply
    60,229.48x = 90,356.34 × 20,788.12
  4. Step 4: Simplify right side
    60,229.48x = 1,878,338,438.68
  5. Step 5: Solve for x
    x = 1,878,338,438.68/60,229.48
  6. Step 6: Final answer
    x = 31,186.36

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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.