Home / 60,331.12-90,496.67-18,781.36

Finding the Fourth Proportional to 60,331.12, 90,496.67 and 18,781.36

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Solution

The fourth proportional to 60,331.12, 90,496.67 and 18,781.36 is: 28,172.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,331.12 : 90,496.67 = 18,781.36 : x
  2. Step 2: Convert to fraction form
    60,331.12/90,496.67 = 18,781.36/x
  3. Step 3: Cross multiply
    60,331.12x = 90,496.67 × 18,781.36
  4. Step 4: Simplify right side
    60,331.12x = 1,699,650,132.54
  5. Step 5: Solve for x
    x = 1,699,650,132.54/60,331.12
  6. Step 6: Final answer
    x = 28,172.03

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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.