Home / 81,535.06-122,109.25-64,613.66

Finding the Fourth Proportional to 81,535.06, 122,109.25 and 64,613.66

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Solution

The fourth proportional to 81,535.06, 122,109.25 and 64,613.66 is: 96,767.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,535.06 : 122,109.25 = 64,613.66 : x
  2. Step 2: Convert to fraction form
    81,535.06/122,109.25 = 64,613.66/x
  3. Step 3: Cross multiply
    81,535.06x = 122,109.25 × 64,613.66
  4. Step 4: Simplify right side
    81,535.06x = 7,889,925,562.36
  5. Step 5: Solve for x
    x = 7,889,925,562.36/81,535.06
  6. Step 6: Final answer
    x = 96,767.27

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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.