Home / 48,728.76-73,087.46-13,188.39

Finding the Fourth Proportional to 48,728.76, 73,087.46 and 13,188.39

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Solution

The fourth proportional to 48,728.76, 73,087.46 and 13,188.39 is: 19,781.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,728.76 : 73,087.46 = 13,188.39 : x
  2. Step 2: Convert to fraction form
    48,728.76/73,087.46 = 13,188.39/x
  3. Step 3: Cross multiply
    48,728.76x = 73,087.46 × 13,188.39
  4. Step 4: Simplify right side
    48,728.76x = 963,905,926.59
  5. Step 5: Solve for x
    x = 963,905,926.59/48,728.76
  6. Step 6: Final answer
    x = 19,781.05

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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.