Home / 90,601.67-125,032-50,319.21

Finding the Fourth Proportional to 90,601.67, 125,032 and 50,319.21

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Solution

The fourth proportional to 90,601.67, 125,032 and 50,319.21 is: 69,441.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,601.67 : 125,032 = 50,319.21 : x
  2. Step 2: Convert to fraction form
    90,601.67/125,032 = 50,319.21/x
  3. Step 3: Cross multiply
    90,601.67x = 125,032 × 50,319.21
  4. Step 4: Simplify right side
    90,601.67x = 6,291,511,464.72
  5. Step 5: Solve for x
    x = 6,291,511,464.72/90,601.67
  6. Step 6: Final answer
    x = 69,441.45

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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.