Home / 91,870.20-126,773.10-51,580.80

Finding the Fourth Proportional to 91,870.20, 126,773.10 and 51,580.80

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Solution

The fourth proportional to 91,870.20, 126,773.10 and 51,580.80 is: 71,177.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,870.20 : 126,773.10 = 51,580.80 : x
  2. Step 2: Convert to fraction form
    91,870.20/126,773.10 = 51,580.80/x
  3. Step 3: Cross multiply
    91,870.20x = 126,773.10 × 51,580.80
  4. Step 4: Simplify right side
    91,870.20x = 6,539,057,916.48
  5. Step 5: Solve for x
    x = 6,539,057,916.48/91,870.20
  6. Step 6: Final answer
    x = 71,177.14

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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.