Home / 91,067.69-125,675.64-50,781.06

Finding the Fourth Proportional to 91,067.69, 125,675.64 and 50,781.06

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Solution

The fourth proportional to 91,067.69, 125,675.64 and 50,781.06 is: 70,079.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,067.69 : 125,675.64 = 50,781.06 : x
  2. Step 2: Convert to fraction form
    91,067.69/125,675.64 = 50,781.06/x
  3. Step 3: Cross multiply
    91,067.69x = 125,675.64 × 50,781.06
  4. Step 4: Simplify right side
    91,067.69x = 6,381,941,333.09
  5. Step 5: Solve for x
    x = 6,381,941,333.09/91,067.69
  6. Step 6: Final answer
    x = 70,079.10

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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.