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Finding the Fourth Proportional to 78,319.37, 108,055 and 44,324.48

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Solution

The fourth proportional to 78,319.37, 108,055 and 44,324.48 is: 61,153.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,319.37 : 108,055 = 44,324.48 : x
  2. Step 2: Convert to fraction form
    78,319.37/108,055 = 44,324.48/x
  3. Step 3: Cross multiply
    78,319.37x = 108,055 × 44,324.48
  4. Step 4: Simplify right side
    78,319.37x = 4,789,481,686.40
  5. Step 5: Solve for x
    x = 4,789,481,686.40/78,319.37
  6. Step 6: Final answer
    x = 61,153.22

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1.5x scale

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.