Home / 91,213.12-125,873.76-50,926.51

Finding the Fourth Proportional to 91,213.12, 125,873.76 and 50,926.51

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Solution

The fourth proportional to 91,213.12, 125,873.76 and 50,926.51 is: 70,278.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,213.12 : 125,873.76 = 50,926.51 : x
  2. Step 2: Convert to fraction form
    91,213.12/125,873.76 = 50,926.51/x
  3. Step 3: Cross multiply
    91,213.12x = 125,873.76 × 50,926.51
  4. Step 4: Simplify right side
    91,213.12x = 6,410,311,297.38
  5. Step 5: Solve for x
    x = 6,410,311,297.38/91,213.12
  6. Step 6: Final answer
    x = 70,278.39

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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.