Home / 81,722.04-112,773.90-45,911.16

Finding the Fourth Proportional to 81,722.04, 112,773.90 and 45,911.16

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Solution

The fourth proportional to 81,722.04, 112,773.90 and 45,911.16 is: 63,355.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,722.04 : 112,773.90 = 45,911.16 : x
  2. Step 2: Convert to fraction form
    81,722.04/112,773.90 = 45,911.16/x
  3. Step 3: Cross multiply
    81,722.04x = 112,773.90 × 45,911.16
  4. Step 4: Simplify right side
    81,722.04x = 5,177,580,566.72
  5. Step 5: Solve for x
    x = 5,177,580,566.72/81,722.04
  6. Step 6: Final answer
    x = 63,355.99

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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.