Home / 91,918.72-126,860.60-51,635.56

Finding the Fourth Proportional to 91,918.72, 126,860.60 and 51,635.56

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Solution

The fourth proportional to 91,918.72, 126,860.60 and 51,635.56 is: 71,264.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,918.72 : 126,860.60 = 51,635.56 : x
  2. Step 2: Convert to fraction form
    91,918.72/126,860.60 = 51,635.56/x
  3. Step 3: Cross multiply
    91,918.72x = 126,860.60 × 51,635.56
  4. Step 4: Simplify right side
    91,918.72x = 6,550,518,122.94
  5. Step 5: Solve for x
    x = 6,550,518,122.94/91,918.72
  6. Step 6: Final answer
    x = 71,264.24

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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.