Home / 80,729.96-111,359.94-52,454.36

Finding the Fourth Proportional to 80,729.96, 111,359.94 and 52,454.36

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Solution

The fourth proportional to 80,729.96, 111,359.94 and 52,454.36 is: 72,356.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,729.96 : 111,359.94 = 52,454.36 : x
  2. Step 2: Convert to fraction form
    80,729.96/111,359.94 = 52,454.36/x
  3. Step 3: Cross multiply
    80,729.96x = 111,359.94 × 52,454.36
  4. Step 4: Simplify right side
    80,729.96x = 5,841,314,382.34
  5. Step 5: Solve for x
    x = 5,841,314,382.34/80,729.96
  6. Step 6: Final answer
    x = 72,356.22

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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.