Home / 90,743.78-125,216.88-50,451.08

Finding the Fourth Proportional to 90,743.78, 125,216.88 and 50,451.08

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Solution

The fourth proportional to 90,743.78, 125,216.88 and 50,451.08 is: 69,617.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,743.78 : 125,216.88 = 50,451.08 : x
  2. Step 2: Convert to fraction form
    90,743.78/125,216.88 = 50,451.08/x
  3. Step 3: Cross multiply
    90,743.78x = 125,216.88 × 50,451.08
  4. Step 4: Simplify right side
    90,743.78x = 6,317,326,830.23
  5. Step 5: Solve for x
    x = 6,317,326,830.23/90,743.78
  6. Step 6: Final answer
    x = 69,617.19

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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.