Home / 91,038-125,631.18-50,755.08

Finding the Fourth Proportional to 91,038, 125,631.18 and 50,755.08

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Solution

The fourth proportional to 91,038, 125,631.18 and 50,755.08 is: 70,041.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,038 : 125,631.18 = 50,755.08 : x
  2. Step 2: Convert to fraction form
    91,038/125,631.18 = 50,755.08/x
  3. Step 3: Cross multiply
    91,038x = 125,631.18 × 50,755.08
  4. Step 4: Simplify right side
    91,038x = 6,376,420,591.39
  5. Step 5: Solve for x
    x = 6,376,420,591.39/91,038
  6. Step 6: Final answer
    x = 70,041.31

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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.