Home / 76,778.12-114,952.08-57,999.08

Finding the Fourth Proportional to 76,778.12, 114,952.08 and 57,999.08

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Solution

The fourth proportional to 76,778.12, 114,952.08 and 57,999.08 is: 86,836.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,778.12 : 114,952.08 = 57,999.08 : x
  2. Step 2: Convert to fraction form
    76,778.12/114,952.08 = 57,999.08/x
  3. Step 3: Cross multiply
    76,778.12x = 114,952.08 × 57,999.08
  4. Step 4: Simplify right side
    76,778.12x = 6,667,114,884.09
  5. Step 5: Solve for x
    x = 6,667,114,884.09/76,778.12
  6. Step 6: Final answer
    x = 86,836.13

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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.