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Finding the Fourth Proportional to 81,750.08, 112,818.08 and 45,940.80

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Solution

The fourth proportional to 81,750.08, 112,818.08 and 45,940.80 is: 63,399.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,750.08 : 112,818.08 = 45,940.80 : x
  2. Step 2: Convert to fraction form
    81,750.08/112,818.08 = 45,940.80/x
  3. Step 3: Cross multiply
    81,750.08x = 112,818.08 × 45,940.80
  4. Step 4: Simplify right side
    81,750.08x = 5,182,952,849.66
  5. Step 5: Solve for x
    x = 5,182,952,849.66/81,750.08
  6. Step 6: Final answer
    x = 63,399.97

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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.