Home / 48,398.39-72,569.31-18,781.62

Finding the Fourth Proportional to 48,398.39, 72,569.31 and 18,781.62

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Solution

The fourth proportional to 48,398.39, 72,569.31 and 18,781.62 is: 28,161.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,398.39 : 72,569.31 = 18,781.62 : x
  2. Step 2: Convert to fraction form
    48,398.39/72,569.31 = 18,781.62/x
  3. Step 3: Cross multiply
    48,398.39x = 72,569.31 × 18,781.62
  4. Step 4: Simplify right side
    48,398.39x = 1,362,969,204.08
  5. Step 5: Solve for x
    x = 1,362,969,204.08/48,398.39
  6. Step 6: Final answer
    x = 28,161.46

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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.