Home / 65,330.78-90,195.13-41,152.47

Finding the Fourth Proportional to 65,330.78, 90,195.13 and 41,152.47

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Solution

The fourth proportional to 65,330.78, 90,195.13 and 41,152.47 is: 56,814.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,330.78 : 90,195.13 = 41,152.47 : x
  2. Step 2: Convert to fraction form
    65,330.78/90,195.13 = 41,152.47/x
  3. Step 3: Cross multiply
    65,330.78x = 90,195.13 × 41,152.47
  4. Step 4: Simplify right side
    65,330.78x = 3,711,752,175.71
  5. Step 5: Solve for x
    x = 3,711,752,175.71/65,330.78
  6. Step 6: Final answer
    x = 56,814.75

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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.