Home / 86,757.12-119,606.40-54,910.08

Finding the Fourth Proportional to 86,757.12, 119,606.40 and 54,910.08

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Solution

The fourth proportional to 86,757.12, 119,606.40 and 54,910.08 is: 75,700.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,757.12 : 119,606.40 = 54,910.08 : x
  2. Step 2: Convert to fraction form
    86,757.12/119,606.40 = 54,910.08/x
  3. Step 3: Cross multiply
    86,757.12x = 119,606.40 × 54,910.08
  4. Step 4: Simplify right side
    86,757.12x = 6,567,596,992.51
  5. Step 5: Solve for x
    x = 6,567,596,992.51/86,757.12
  6. Step 6: Final answer
    x = 75,700.96

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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.