Home / 96,721.80-133,488.62-54,280.33

Finding the Fourth Proportional to 96,721.80, 133,488.62 and 54,280.33

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Solution

The fourth proportional to 96,721.80, 133,488.62 and 54,280.33 is: 74,913.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,721.80 : 133,488.62 = 54,280.33 : x
  2. Step 2: Convert to fraction form
    96,721.80/133,488.62 = 54,280.33/x
  3. Step 3: Cross multiply
    96,721.80x = 133,488.62 × 54,280.33
  4. Step 4: Simplify right side
    96,721.80x = 7,245,806,344.84
  5. Step 5: Solve for x
    x = 7,245,806,344.84/96,721.80
  6. Step 6: Final answer
    x = 74,913.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.