Home / 91,188.10-125,896.47-58,939.60

Finding the Fourth Proportional to 91,188.10, 125,896.47 and 58,939.60

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Solution

The fourth proportional to 91,188.10, 125,896.47 and 58,939.60 is: 81,373.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,188.10 : 125,896.47 = 58,939.60 : x
  2. Step 2: Convert to fraction form
    91,188.10/125,896.47 = 58,939.60/x
  3. Step 3: Cross multiply
    91,188.10x = 125,896.47 × 58,939.60
  4. Step 4: Simplify right side
    91,188.10x = 7,420,287,583.21
  5. Step 5: Solve for x
    x = 7,420,287,583.21/91,188.10
  6. Step 6: Final answer
    x = 81,373.42

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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.