Home / 91,928.80-137,747.40-60,727.60

Finding the Fourth Proportional to 91,928.80, 137,747.40 and 60,727.60

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Solution

The fourth proportional to 91,928.80, 137,747.40 and 60,727.60 is: 90,995.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,928.80 : 137,747.40 = 60,727.60 : x
  2. Step 2: Convert to fraction form
    91,928.80/137,747.40 = 60,727.60/x
  3. Step 3: Cross multiply
    91,928.80x = 137,747.40 × 60,727.60
  4. Step 4: Simplify right side
    91,928.80x = 8,365,069,008.24
  5. Step 5: Solve for x
    x = 8,365,069,008.24/91,928.80
  6. Step 6: Final answer
    x = 90,995.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.