Home / 91,963.22-126,878.64-51,671.36

Finding the Fourth Proportional to 91,963.22, 126,878.64 and 51,671.36

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Solution

The fourth proportional to 91,963.22, 126,878.64 and 51,671.36 is: 71,289.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,963.22 : 126,878.64 = 51,671.36 : x
  2. Step 2: Convert to fraction form
    91,963.22/126,878.64 = 51,671.36/x
  3. Step 3: Cross multiply
    91,963.22x = 126,878.64 × 51,671.36
  4. Step 4: Simplify right side
    91,963.22x = 6,555,991,883.75
  5. Step 5: Solve for x
    x = 6,555,991,883.75/91,963.22
  6. Step 6: Final answer
    x = 71,289.28

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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.