Home / 81,508.41-122,280.21-25,347.42

Finding the Fourth Proportional to 81,508.41, 122,280.21 and 25,347.42

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Solution

The fourth proportional to 81,508.41, 122,280.21 and 25,347.42 is: 38,026.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,508.41 : 122,280.21 = 25,347.42 : x
  2. Step 2: Convert to fraction form
    81,508.41/122,280.21 = 25,347.42/x
  3. Step 3: Cross multiply
    81,508.41x = 122,280.21 × 25,347.42
  4. Step 4: Simplify right side
    81,508.41x = 3,099,487,840.56
  5. Step 5: Solve for x
    x = 3,099,487,840.56/81,508.41
  6. Step 6: Final answer
    x = 38,026.60

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1.5x scale

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.