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Finding the Fourth Proportional to 65,535.60, 90,367.72 and 44,278

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Solution

The fourth proportional to 65,535.60, 90,367.72 and 44,278 is: 61,055.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,535.60 : 90,367.72 = 44,278 : x
  2. Step 2: Convert to fraction form
    65,535.60/90,367.72 = 44,278/x
  3. Step 3: Cross multiply
    65,535.60x = 90,367.72 × 44,278
  4. Step 4: Simplify right side
    65,535.60x = 4,001,301,906.16
  5. Step 5: Solve for x
    x = 4,001,301,906.16/65,535.60
  6. Step 6: Final answer
    x = 61,055.39

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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.