Home / 90,930.25-125,486.18-50,645.71

Finding the Fourth Proportional to 90,930.25, 125,486.18 and 50,645.71

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Solution

The fourth proportional to 90,930.25, 125,486.18 and 50,645.71 is: 69,892.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,930.25 : 125,486.18 = 50,645.71 : x
  2. Step 2: Convert to fraction form
    90,930.25/125,486.18 = 50,645.71/x
  3. Step 3: Cross multiply
    90,930.25x = 125,486.18 × 50,645.71
  4. Step 4: Simplify right side
    90,930.25x = 6,355,336,681.29
  5. Step 5: Solve for x
    x = 6,355,336,681.29/90,930.25
  6. Step 6: Final answer
    x = 69,892.44

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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.