Home / 90,591.62-125,012.25-50,307.96

Finding the Fourth Proportional to 90,591.62, 125,012.25 and 50,307.96

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Solution

The fourth proportional to 90,591.62, 125,012.25 and 50,307.96 is: 69,422.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,591.62 : 125,012.25 = 50,307.96 : x
  2. Step 2: Convert to fraction form
    90,591.62/125,012.25 = 50,307.96/x
  3. Step 3: Cross multiply
    90,591.62x = 125,012.25 × 50,307.96
  4. Step 4: Simplify right side
    90,591.62x = 6,289,111,272.51
  5. Step 5: Solve for x
    x = 6,289,111,272.51/90,591.62
  6. Step 6: Final answer
    x = 69,422.66

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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.