Home / 83,808.77-115,646.40-47,996.64

Finding the Fourth Proportional to 83,808.77, 115,646.40 and 47,996.64

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Solution

The fourth proportional to 83,808.77, 115,646.40 and 47,996.64 is: 66,229.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,808.77 : 115,646.40 = 47,996.64 : x
  2. Step 2: Convert to fraction form
    83,808.77/115,646.40 = 47,996.64/x
  3. Step 3: Cross multiply
    83,808.77x = 115,646.40 × 47,996.64
  4. Step 4: Simplify right side
    83,808.77x = 5,550,638,628.10
  5. Step 5: Solve for x
    x = 5,550,638,628.10/83,808.77
  6. Step 6: Final answer
    x = 66,229.81

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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.