Home / 83,779.56-115,496.82-66,633.48

Finding the Fourth Proportional to 83,779.56, 115,496.82 and 66,633.48

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Solution

The fourth proportional to 83,779.56, 115,496.82 and 66,633.48 is: 91,859.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,779.56 : 115,496.82 = 66,633.48 : x
  2. Step 2: Convert to fraction form
    83,779.56/115,496.82 = 66,633.48/x
  3. Step 3: Cross multiply
    83,779.56x = 115,496.82 × 66,633.48
  4. Step 4: Simplify right side
    83,779.56x = 7,695,955,045.53
  5. Step 5: Solve for x
    x = 7,695,955,045.53/83,779.56
  6. Step 6: Final answer
    x = 91,859.58

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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.