Home / 91,107.21-125,727.09-50,271.71

Finding the Fourth Proportional to 91,107.21, 125,727.09 and 50,271.71

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Solution

The fourth proportional to 91,107.21, 125,727.09 and 50,271.71 is: 69,374.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,107.21 : 125,727.09 = 50,271.71 : x
  2. Step 2: Convert to fraction form
    91,107.21/125,727.09 = 50,271.71/x
  3. Step 3: Cross multiply
    91,107.21x = 125,727.09 × 50,271.71
  4. Step 4: Simplify right side
    91,107.21x = 6,320,514,990.47
  5. Step 5: Solve for x
    x = 6,320,514,990.47/91,107.21
  6. Step 6: Final answer
    x = 69,374.47

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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.