Home / 48,531.69-72,768.81-18,914.95

Finding the Fourth Proportional to 48,531.69, 72,768.81 and 18,914.95

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Solution

The fourth proportional to 48,531.69, 72,768.81 and 18,914.95 is: 28,361.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,531.69 : 72,768.81 = 18,914.95 : x
  2. Step 2: Convert to fraction form
    48,531.69/72,768.81 = 18,914.95/x
  3. Step 3: Cross multiply
    48,531.69x = 72,768.81 × 18,914.95
  4. Step 4: Simplify right side
    48,531.69x = 1,376,418,564.60
  5. Step 5: Solve for x
    x = 1,376,418,564.60/48,531.69
  6. Step 6: Final answer
    x = 28,361.23

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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.