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Finding the Fourth Proportional to 91,227.60, 125,850.60 and 57,219.12

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Solution

The fourth proportional to 91,227.60, 125,850.60 and 57,219.12 is: 78,935.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,227.60 : 125,850.60 = 57,219.12 : x
  2. Step 2: Convert to fraction form
    91,227.60/125,850.60 = 57,219.12/x
  3. Step 3: Cross multiply
    91,227.60x = 125,850.60 × 57,219.12
  4. Step 4: Simplify right side
    91,227.60x = 7,201,060,583.47
  5. Step 5: Solve for x
    x = 7,201,060,583.47/91,227.60
  6. Step 6: Final answer
    x = 78,935.11

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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.