Home / 81,181.43-112,029.99-45,371.42

Finding the Fourth Proportional to 81,181.43, 112,029.99 and 45,371.42

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Solution

The fourth proportional to 81,181.43, 112,029.99 and 45,371.42 is: 62,612.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,181.43 : 112,029.99 = 45,371.42 : x
  2. Step 2: Convert to fraction form
    81,181.43/112,029.99 = 45,371.42/x
  3. Step 3: Cross multiply
    81,181.43x = 112,029.99 × 45,371.42
  4. Step 4: Simplify right side
    81,181.43x = 5,082,959,728.89
  5. Step 5: Solve for x
    x = 5,082,959,728.89/81,181.43
  6. Step 6: Final answer
    x = 62,612.35

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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.