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Finding the Fourth Proportional to 61,148.40, 91,722.60 and 43,433.70

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Solution

The fourth proportional to 61,148.40, 91,722.60 and 43,433.70 is: 65,150.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,148.40 : 91,722.60 = 43,433.70 : x
  2. Step 2: Convert to fraction form
    61,148.40/91,722.60 = 43,433.70/x
  3. Step 3: Cross multiply
    61,148.40x = 91,722.60 × 43,433.70
  4. Step 4: Simplify right side
    61,148.40x = 3,983,851,891.62
  5. Step 5: Solve for x
    x = 3,983,851,891.62/61,148.40
  6. Step 6: Final answer
    x = 65,150.55

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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.