Home / 90,674.98-125,127.39-50,388.55

Finding the Fourth Proportional to 90,674.98, 125,127.39 and 50,388.55

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Solution

The fourth proportional to 90,674.98, 125,127.39 and 50,388.55 is: 69,533.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,674.98 : 125,127.39 = 50,388.55 : x
  2. Step 2: Convert to fraction form
    90,674.98/125,127.39 = 50,388.55/x
  3. Step 3: Cross multiply
    90,674.98x = 125,127.39 × 50,388.55
  4. Step 4: Simplify right side
    90,674.98x = 6,304,987,747.38
  5. Step 5: Solve for x
    x = 6,304,987,747.38/90,674.98
  6. Step 6: Final answer
    x = 69,533.93

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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.