Home / 81,529.29-112,358.07-63,595.89

Finding the Fourth Proportional to 81,529.29, 112,358.07 and 63,595.89

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Solution

The fourth proportional to 81,529.29, 112,358.07 and 63,595.89 is: 87,643.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,529.29 : 112,358.07 = 63,595.89 : x
  2. Step 2: Convert to fraction form
    81,529.29/112,358.07 = 63,595.89/x
  3. Step 3: Cross multiply
    81,529.29x = 112,358.07 × 63,595.89
  4. Step 4: Simplify right side
    81,529.29x = 7,145,511,460.33
  5. Step 5: Solve for x
    x = 7,145,511,460.33/81,529.29
  6. Step 6: Final answer
    x = 87,643.49

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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.