Home / 80,878.71-111,611.08-45,067.93

Finding the Fourth Proportional to 80,878.71, 111,611.08 and 45,067.93

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Solution

The fourth proportional to 80,878.71, 111,611.08 and 45,067.93 is: 62,192.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,878.71 : 111,611.08 = 45,067.93 : x
  2. Step 2: Convert to fraction form
    80,878.71/111,611.08 = 45,067.93/x
  3. Step 3: Cross multiply
    80,878.71x = 111,611.08 × 45,067.93
  4. Step 4: Simplify right side
    80,878.71x = 5,030,080,340.66
  5. Step 5: Solve for x
    x = 5,030,080,340.66/80,878.71
  6. Step 6: Final answer
    x = 62,192.89

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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.