Home / 91,860.90-126,758.61-51,579.11

Finding the Fourth Proportional to 91,860.90, 126,758.61 and 51,579.11

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Solution

The fourth proportional to 91,860.90, 126,758.61 and 51,579.11 is: 71,173.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,860.90 : 126,758.61 = 51,579.11 : x
  2. Step 2: Convert to fraction form
    91,860.90/126,758.61 = 51,579.11/x
  3. Step 3: Cross multiply
    91,860.90x = 126,758.61 × 51,579.11
  4. Step 4: Simplify right side
    91,860.90x = 6,538,095,654.84
  5. Step 5: Solve for x
    x = 6,538,095,654.84/91,860.90
  6. Step 6: Final answer
    x = 71,173.87

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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.