Home / 66,487.18-91,751.37-38,193.10

Finding the Fourth Proportional to 66,487.18, 91,751.37 and 38,193.10

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Solution

The fourth proportional to 66,487.18, 91,751.37 and 38,193.10 is: 52,705.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,487.18 : 91,751.37 = 38,193.10 : x
  2. Step 2: Convert to fraction form
    66,487.18/91,751.37 = 38,193.10/x
  3. Step 3: Cross multiply
    66,487.18x = 91,751.37 × 38,193.10
  4. Step 4: Simplify right side
    66,487.18x = 3,504,269,249.55
  5. Step 5: Solve for x
    x = 3,504,269,249.55/66,487.18
  6. Step 6: Final answer
    x = 52,705.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.