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Finding the Fourth Proportional to 79,516, 109,616.44 and 55,568.32

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Solution

The fourth proportional to 79,516, 109,616.44 and 55,568.32 is: 76,603.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,516 : 109,616.44 = 55,568.32 : x
  2. Step 2: Convert to fraction form
    79,516/109,616.44 = 55,568.32/x
  3. Step 3: Cross multiply
    79,516x = 109,616.44 × 55,568.32
  4. Step 4: Simplify right side
    79,516x = 6,091,201,415.18
  5. Step 5: Solve for x
    x = 6,091,201,415.18/79,516
  6. Step 6: Final answer
    x = 76,603.47

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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.