Home / 90,968.87-125,536.20-50,681.90

Finding the Fourth Proportional to 90,968.87, 125,536.20 and 50,681.90

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Solution

The fourth proportional to 90,968.87, 125,536.20 and 50,681.90 is: 69,940.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,968.87 : 125,536.20 = 50,681.90 : x
  2. Step 2: Convert to fraction form
    90,968.87/125,536.20 = 50,681.90/x
  3. Step 3: Cross multiply
    90,968.87x = 125,536.20 × 50,681.90
  4. Step 4: Simplify right side
    90,968.87x = 6,362,412,507.10
  5. Step 5: Solve for x
    x = 6,362,412,507.10/90,968.87
  6. Step 6: Final answer
    x = 69,940.55

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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.