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Finding the Fourth Proportional to 81,195.93, 112,050.51 and 45,385.91

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Solution

The fourth proportional to 81,195.93, 112,050.51 and 45,385.91 is: 62,632.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,195.93 : 112,050.51 = 45,385.91 : x
  2. Step 2: Convert to fraction form
    81,195.93/112,050.51 = 45,385.91/x
  3. Step 3: Cross multiply
    81,195.93x = 112,050.51 × 45,385.91
  4. Step 4: Simplify right side
    81,195.93x = 5,085,514,362.31
  5. Step 5: Solve for x
    x = 5,085,514,362.31/81,195.93
  6. Step 6: Final answer
    x = 62,632.63

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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.