Home / 90,642.37-125,072.59-50,352.43

Finding the Fourth Proportional to 90,642.37, 125,072.59 and 50,352.43

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Solution

The fourth proportional to 90,642.37, 125,072.59 and 50,352.43 is: 69,478.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,642.37 : 125,072.59 = 50,352.43 : x
  2. Step 2: Convert to fraction form
    90,642.37/125,072.59 = 50,352.43/x
  3. Step 3: Cross multiply
    90,642.37x = 125,072.59 × 50,352.43
  4. Step 4: Simplify right side
    90,642.37x = 6,297,708,581.13
  5. Step 5: Solve for x
    x = 6,297,708,581.13/90,642.37
  6. Step 6: Final answer
    x = 69,478.64

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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.