Home / 57,679.20-86,567.40-26,137.80

Finding the Fourth Proportional to 57,679.20, 86,567.40 and 26,137.80

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Solution

The fourth proportional to 57,679.20, 86,567.40 and 26,137.80 is: 39,228.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,679.20 : 86,567.40 = 26,137.80 : x
  2. Step 2: Convert to fraction form
    57,679.20/86,567.40 = 26,137.80/x
  3. Step 3: Cross multiply
    57,679.20x = 86,567.40 × 26,137.80
  4. Step 4: Simplify right side
    57,679.20x = 2,262,681,387.72
  5. Step 5: Solve for x
    x = 2,262,681,387.72/57,679.20
  6. Step 6: Final answer
    x = 39,228.72

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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.