Home / 91,804.36-126,661.14-51,512.20

Finding the Fourth Proportional to 91,804.36, 126,661.14 and 51,512.20

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Solution

The fourth proportional to 91,804.36, 126,661.14 and 51,512.20 is: 71,070.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,804.36 : 126,661.14 = 51,512.20 : x
  2. Step 2: Convert to fraction form
    91,804.36/126,661.14 = 51,512.20/x
  3. Step 3: Cross multiply
    91,804.36x = 126,661.14 × 51,512.20
  4. Step 4: Simplify right side
    91,804.36x = 6,524,593,975.91
  5. Step 5: Solve for x
    x = 6,524,593,975.91/91,804.36
  6. Step 6: Final answer
    x = 71,070.63

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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.