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Finding the Fourth Proportional to 91,260, 125,941.50 and 50,975.46

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Solution

The fourth proportional to 91,260, 125,941.50 and 50,975.46 is: 70,347.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,260 : 125,941.50 = 50,975.46 : x
  2. Step 2: Convert to fraction form
    91,260/125,941.50 = 50,975.46/x
  3. Step 3: Cross multiply
    91,260x = 125,941.50 × 50,975.46
  4. Step 4: Simplify right side
    91,260x = 6,419,925,895.59
  5. Step 5: Solve for x
    x = 6,419,925,895.59/91,260
  6. Step 6: Final answer
    x = 70,347.64

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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.