Home / 55,115-76,059.24-29,965.04

Finding the Fourth Proportional to 55,115, 76,059.24 and 29,965.04

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Solution

The fourth proportional to 55,115, 76,059.24 and 29,965.04 is: 41,352.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,115 : 76,059.24 = 29,965.04 : x
  2. Step 2: Convert to fraction form
    55,115/76,059.24 = 29,965.04/x
  3. Step 3: Cross multiply
    55,115x = 76,059.24 × 29,965.04
  4. Step 4: Simplify right side
    55,115x = 2,279,118,168.97
  5. Step 5: Solve for x
    x = 2,279,118,168.97/55,115
  6. Step 6: Final answer
    x = 41,352.05

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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.