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Finding the Fourth Proportional to 60,229.98, 90,357.09 and 20,788.62

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Solution

The fourth proportional to 60,229.98, 90,357.09 and 20,788.62 is: 31,187.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,229.98 : 90,357.09 = 20,788.62 : x
  2. Step 2: Convert to fraction form
    60,229.98/90,357.09 = 20,788.62/x
  3. Step 3: Cross multiply
    60,229.98x = 90,357.09 × 20,788.62
  4. Step 4: Simplify right side
    60,229.98x = 1,878,399,208.32
  5. Step 5: Solve for x
    x = 1,878,399,208.32/60,229.98
  6. Step 6: Final answer
    x = 31,187.11

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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.