Home / 91,673.56-126,515.36-51,387.34

Finding the Fourth Proportional to 91,673.56, 126,515.36 and 51,387.34

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Solution

The fourth proportional to 91,673.56, 126,515.36 and 51,387.34 is: 70,917.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,673.56 : 126,515.36 = 51,387.34 : x
  2. Step 2: Convert to fraction form
    91,673.56/126,515.36 = 51,387.34/x
  3. Step 3: Cross multiply
    91,673.56x = 126,515.36 × 51,387.34
  4. Step 4: Simplify right side
    91,673.56x = 6,501,287,819.54
  5. Step 5: Solve for x
    x = 6,501,287,819.54/91,673.56
  6. Step 6: Final answer
    x = 70,917.81

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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.