Home / 47,811.78-65,979.09-27,665.87

Finding the Fourth Proportional to 47,811.78, 65,979.09 and 27,665.87

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Solution

The fourth proportional to 47,811.78, 65,979.09 and 27,665.87 is: 38,178.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,811.78 : 65,979.09 = 27,665.87 : x
  2. Step 2: Convert to fraction form
    47,811.78/65,979.09 = 27,665.87/x
  3. Step 3: Cross multiply
    47,811.78x = 65,979.09 × 27,665.87
  4. Step 4: Simplify right side
    47,811.78x = 1,825,368,596.76
  5. Step 5: Solve for x
    x = 1,825,368,596.76/47,811.78
  6. Step 6: Final answer
    x = 38,178.22

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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.