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Finding the Fourth Proportional to 84,767.82, 116,712.87 and 71,993.58

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Solution

The fourth proportional to 84,767.82, 116,712.87 and 71,993.58 is: 99,124.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,767.82 : 116,712.87 = 71,993.58 : x
  2. Step 2: Convert to fraction form
    84,767.82/116,712.87 = 71,993.58/x
  3. Step 3: Cross multiply
    84,767.82x = 116,712.87 × 71,993.58
  4. Step 4: Simplify right side
    84,767.82x = 8,402,577,343.37
  5. Step 5: Solve for x
    x = 8,402,577,343.37/84,767.82
  6. Step 6: Final answer
    x = 99,124.61

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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.