Home / 81,396.46-112,329.45-45,586.09

Finding the Fourth Proportional to 81,396.46, 112,329.45 and 45,586.09

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Solution

The fourth proportional to 81,396.46, 112,329.45 and 45,586.09 is: 62,910.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,396.46 : 112,329.45 = 45,586.09 : x
  2. Step 2: Convert to fraction form
    81,396.46/112,329.45 = 45,586.09/x
  3. Step 3: Cross multiply
    81,396.46x = 112,329.45 × 45,586.09
  4. Step 4: Simplify right side
    81,396.46x = 5,120,660,417.35
  5. Step 5: Solve for x
    x = 5,120,660,417.35/81,396.46
  6. Step 6: Final answer
    x = 62,910.11

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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.