Home / 42,711.40-64,067.10-27,965.80

Finding the Fourth Proportional to 42,711.40, 64,067.10 and 27,965.80

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Solution

The fourth proportional to 42,711.40, 64,067.10 and 27,965.80 is: 41,948.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,711.40 : 64,067.10 = 27,965.80 : x
  2. Step 2: Convert to fraction form
    42,711.40/64,067.10 = 27,965.80/x
  3. Step 3: Cross multiply
    42,711.40x = 64,067.10 × 27,965.80
  4. Step 4: Simplify right side
    42,711.40x = 1,791,687,705.18
  5. Step 5: Solve for x
    x = 1,791,687,705.18/42,711.40
  6. Step 6: Final answer
    x = 41,948.70

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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.