Home / 81,644.15-112,668.85-45,834.23

Finding the Fourth Proportional to 81,644.15, 112,668.85 and 45,834.23

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Solution

The fourth proportional to 81,644.15, 112,668.85 and 45,834.23 is: 63,251.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,644.15 : 112,668.85 = 45,834.23 : x
  2. Step 2: Convert to fraction form
    81,644.15/112,668.85 = 45,834.23/x
  3. Step 3: Cross multiply
    81,644.15x = 112,668.85 × 45,834.23
  4. Step 4: Simplify right side
    81,644.15x = 5,164,089,877.91
  5. Step 5: Solve for x
    x = 5,164,089,877.91/81,644.15
  6. Step 6: Final answer
    x = 63,251.19

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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.