Home / 91,498.78-126,268.29-51,212.54

Finding the Fourth Proportional to 91,498.78, 126,268.29 and 51,212.54

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Solution

The fourth proportional to 91,498.78, 126,268.29 and 51,212.54 is: 70,673.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,498.78 : 126,268.29 = 51,212.54 : x
  2. Step 2: Convert to fraction form
    91,498.78/126,268.29 = 51,212.54/x
  3. Step 3: Cross multiply
    91,498.78x = 126,268.29 × 51,212.54
  4. Step 4: Simplify right side
    91,498.78x = 6,466,519,852.36
  5. Step 5: Solve for x
    x = 6,466,519,852.36/91,498.78
  6. Step 6: Final answer
    x = 70,673.29

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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.