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Finding the Fourth Proportional to 84,577.77, 116,451.03 and 71,805.69

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Solution

The fourth proportional to 84,577.77, 116,451.03 and 71,805.69 is: 98,865.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,577.77 : 116,451.03 = 71,805.69 : x
  2. Step 2: Convert to fraction form
    84,577.77/116,451.03 = 71,805.69/x
  3. Step 3: Cross multiply
    84,577.77x = 116,451.03 × 71,805.69
  4. Step 4: Simplify right side
    84,577.77x = 8,361,846,829.63
  5. Step 5: Solve for x
    x = 8,361,846,829.63/84,577.77
  6. Step 6: Final answer
    x = 98,865.78

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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.