Home / 99,923.94-137,890.92-54,603.51

Finding the Fourth Proportional to 99,923.94, 137,890.92 and 54,603.51

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Solution

The fourth proportional to 99,923.94, 137,890.92 and 54,603.51 is: 75,350.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,923.94 : 137,890.92 = 54,603.51 : x
  2. Step 2: Convert to fraction form
    99,923.94/137,890.92 = 54,603.51/x
  3. Step 3: Cross multiply
    99,923.94x = 137,890.92 × 54,603.51
  4. Step 4: Simplify right side
    99,923.94x = 7,529,328,229.13
  5. Step 5: Solve for x
    x = 7,529,328,229.13/99,923.94
  6. Step 6: Final answer
    x = 75,350.59

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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.