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Finding the Fourth Proportional to 81,467.35, 112,429.35 and 45,668.86

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Solution

The fourth proportional to 81,467.35, 112,429.35 and 45,668.86 is: 63,025.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,467.35 : 112,429.35 = 45,668.86 : x
  2. Step 2: Convert to fraction form
    81,467.35/112,429.35 = 45,668.86/x
  3. Step 3: Cross multiply
    81,467.35x = 112,429.35 × 45,668.86
  4. Step 4: Simplify right side
    81,467.35x = 5,134,519,454.55
  5. Step 5: Solve for x
    x = 5,134,519,454.55/81,467.35
  6. Step 6: Final answer
    x = 63,025.49

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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.