Home / 48,621-72,943.82-13,560.66

Finding the Fourth Proportional to 48,621, 72,943.82 and 13,560.66

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Solution

The fourth proportional to 48,621, 72,943.82 and 13,560.66 is: 20,344.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,621 : 72,943.82 = 13,560.66 : x
  2. Step 2: Convert to fraction form
    48,621/72,943.82 = 13,560.66/x
  3. Step 3: Cross multiply
    48,621x = 72,943.82 × 13,560.66
  4. Step 4: Simplify right side
    48,621x = 989,166,376.02
  5. Step 5: Solve for x
    x = 989,166,376.02/48,621
  6. Step 6: Final answer
    x = 20,344.43

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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.