Home / 65,151.90-89,919.27-41,280.80

Finding the Fourth Proportional to 65,151.90, 89,919.27 and 41,280.80

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Solution

The fourth proportional to 65,151.90, 89,919.27 and 41,280.80 is: 56,973.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,151.90 : 89,919.27 = 41,280.80 : x
  2. Step 2: Convert to fraction form
    65,151.90/89,919.27 = 41,280.80/x
  3. Step 3: Cross multiply
    65,151.90x = 89,919.27 × 41,280.80
  4. Step 4: Simplify right side
    65,151.90x = 3,711,938,951.42
  5. Step 5: Solve for x
    x = 3,711,938,951.42/65,151.90
  6. Step 6: Final answer
    x = 56,973.61

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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.