Home / 87,899.04-121,305.60-50,181.12

Finding the Fourth Proportional to 87,899.04, 121,305.60 and 50,181.12

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Solution

The fourth proportional to 87,899.04, 121,305.60 and 50,181.12 is: 69,252.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,899.04 : 121,305.60 = 50,181.12 : x
  2. Step 2: Convert to fraction form
    87,899.04/121,305.60 = 50,181.12/x
  3. Step 3: Cross multiply
    87,899.04x = 121,305.60 × 50,181.12
  4. Step 4: Simplify right side
    87,899.04x = 6,087,250,870.27
  5. Step 5: Solve for x
    x = 6,087,250,870.27/87,899.04
  6. Step 6: Final answer
    x = 69,252.76

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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.