Home / 99,739.44-137,639.48-55,027.12

Finding the Fourth Proportional to 99,739.44, 137,639.48 and 55,027.12

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Solution

The fourth proportional to 99,739.44, 137,639.48 and 55,027.12 is: 75,936.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,739.44 : 137,639.48 = 55,027.12 : x
  2. Step 2: Convert to fraction form
    99,739.44/137,639.48 = 55,027.12/x
  3. Step 3: Cross multiply
    99,739.44x = 137,639.48 × 55,027.12
  4. Step 4: Simplify right side
    99,739.44x = 7,573,904,182.70
  5. Step 5: Solve for x
    x = 7,573,904,182.70/99,739.44
  6. Step 6: Final answer
    x = 75,936.90

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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.