Home / 81,383.28-112,320.30-58,795.34

Finding the Fourth Proportional to 81,383.28, 112,320.30 and 58,795.34

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Solution

The fourth proportional to 81,383.28, 112,320.30 and 58,795.34 is: 81,145.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,383.28 : 112,320.30 = 58,795.34 : x
  2. Step 2: Convert to fraction form
    81,383.28/112,320.30 = 58,795.34/x
  3. Step 3: Cross multiply
    81,383.28x = 112,320.30 × 58,795.34
  4. Step 4: Simplify right side
    81,383.28x = 6,603,910,227.40
  5. Step 5: Solve for x
    x = 6,603,910,227.40/81,383.28
  6. Step 6: Final answer
    x = 81,145.79

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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.