Home / 78,962.16-108,935.22-55,102.68

Finding the Fourth Proportional to 78,962.16, 108,935.22 and 55,102.68

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Solution

The fourth proportional to 78,962.16, 108,935.22 and 55,102.68 is: 76,018.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,962.16 : 108,935.22 = 55,102.68 : x
  2. Step 2: Convert to fraction form
    78,962.16/108,935.22 = 55,102.68/x
  3. Step 3: Cross multiply
    78,962.16x = 108,935.22 × 55,102.68
  4. Step 4: Simplify right side
    78,962.16x = 6,002,622,568.39
  5. Step 5: Solve for x
    x = 6,002,622,568.39/78,962.16
  6. Step 6: Final answer
    x = 76,018.98

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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.