Home / 91,531.22-126,309.57-50,137.55

Finding the Fourth Proportional to 91,531.22, 126,309.57 and 50,137.55

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Solution

The fourth proportional to 91,531.22, 126,309.57 and 50,137.55 is: 69,187.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,531.22 : 126,309.57 = 50,137.55 : x
  2. Step 2: Convert to fraction form
    91,531.22/126,309.57 = 50,137.55/x
  3. Step 3: Cross multiply
    91,531.22x = 126,309.57 × 50,137.55
  4. Step 4: Simplify right side
    91,531.22x = 6,332,852,035.45
  5. Step 5: Solve for x
    x = 6,332,852,035.45/91,531.22
  6. Step 6: Final answer
    x = 69,187.89

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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.