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Finding the Fourth Proportional to 91,223.85, 125,887.72 and 50,938.30

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Solution

The fourth proportional to 91,223.85, 125,887.72 and 50,938.30 is: 70,294.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,223.85 : 125,887.72 = 50,938.30 : x
  2. Step 2: Convert to fraction form
    91,223.85/125,887.72 = 50,938.30/x
  3. Step 3: Cross multiply
    91,223.85x = 125,887.72 × 50,938.30
  4. Step 4: Simplify right side
    91,223.85x = 6,412,505,563.55
  5. Step 5: Solve for x
    x = 6,412,505,563.55/91,223.85
  6. Step 6: Final answer
    x = 70,294.18

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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.