Home / 90,642.12-125,072.24-50,352.18

Finding the Fourth Proportional to 90,642.12, 125,072.24 and 50,352.18

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Solution

The fourth proportional to 90,642.12, 125,072.24 and 50,352.18 is: 69,478.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,642.12 : 125,072.24 = 50,352.18 : x
  2. Step 2: Convert to fraction form
    90,642.12/125,072.24 = 50,352.18/x
  3. Step 3: Cross multiply
    90,642.12x = 125,072.24 × 50,352.18
  4. Step 4: Simplify right side
    90,642.12x = 6,297,659,941.48
  5. Step 5: Solve for x
    x = 6,297,659,941.48/90,642.12
  6. Step 6: Final answer
    x = 69,478.29

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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.