Home / 81,603.72-122,436.36-55,554.12

Finding the Fourth Proportional to 81,603.72, 122,436.36 and 55,554.12

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Solution

The fourth proportional to 81,603.72, 122,436.36 and 55,554.12 is: 83,352.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,603.72 : 122,436.36 = 55,554.12 : x
  2. Step 2: Convert to fraction form
    81,603.72/122,436.36 = 55,554.12/x
  3. Step 3: Cross multiply
    81,603.72x = 122,436.36 × 55,554.12
  4. Step 4: Simplify right side
    81,603.72x = 6,801,844,235.80
  5. Step 5: Solve for x
    x = 6,801,844,235.80/81,603.72
  6. Step 6: Final answer
    x = 83,352.13

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1.5x scale

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.