Home / 99,521.54-137,333.49-54,809.54

Finding the Fourth Proportional to 99,521.54, 137,333.49 and 54,809.54

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Solution

The fourth proportional to 99,521.54, 137,333.49 and 54,809.54 is: 75,633.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,521.54 : 137,333.49 = 54,809.54 : x
  2. Step 2: Convert to fraction form
    99,521.54/137,333.49 = 54,809.54/x
  3. Step 3: Cross multiply
    99,521.54x = 137,333.49 × 54,809.54
  4. Step 4: Simplify right side
    99,521.54x = 7,527,185,413.49
  5. Step 5: Solve for x
    x = 7,527,185,413.49/99,521.54
  6. Step 6: Final answer
    x = 75,633.73

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1.5x scale

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.