Home / 84,868.13-117,196.80-54,723.98

Finding the Fourth Proportional to 84,868.13, 117,196.80 and 54,723.98

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Solution

The fourth proportional to 84,868.13, 117,196.80 and 54,723.98 is: 75,569.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,868.13 : 117,196.80 = 54,723.98 : x
  2. Step 2: Convert to fraction form
    84,868.13/117,196.80 = 54,723.98/x
  3. Step 3: Cross multiply
    84,868.13x = 117,196.80 × 54,723.98
  4. Step 4: Simplify right side
    84,868.13x = 6,413,475,339.26
  5. Step 5: Solve for x
    x = 6,413,475,339.26/84,868.13
  6. Step 6: Final answer
    x = 75,569.89

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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.