Home / 66,541.80-91,822.32-38,242.20

Finding the Fourth Proportional to 66,541.80, 91,822.32 and 38,242.20

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Solution

The fourth proportional to 66,541.80, 91,822.32 and 38,242.20 is: 52,771.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,541.80 : 91,822.32 = 38,242.20 : x
  2. Step 2: Convert to fraction form
    66,541.80/91,822.32 = 38,242.20/x
  3. Step 3: Cross multiply
    66,541.80x = 91,822.32 × 38,242.20
  4. Step 4: Simplify right side
    66,541.80x = 3,511,487,525.90
  5. Step 5: Solve for x
    x = 3,511,487,525.90/66,541.80
  6. Step 6: Final answer
    x = 52,771.15

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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.