Home / 57,246.40-85,869.60-51,122.80

Finding the Fourth Proportional to 57,246.40, 85,869.60 and 51,122.80

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Solution

The fourth proportional to 57,246.40, 85,869.60 and 51,122.80 is: 76,684.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,246.40 : 85,869.60 = 51,122.80 : x
  2. Step 2: Convert to fraction form
    57,246.40/85,869.60 = 51,122.80/x
  3. Step 3: Cross multiply
    57,246.40x = 85,869.60 × 51,122.80
  4. Step 4: Simplify right side
    57,246.40x = 4,389,894,386.88
  5. Step 5: Solve for x
    x = 4,389,894,386.88/57,246.40
  6. Step 6: Final answer
    x = 76,684.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.