Home / 81,712.43-112,750.86-45,895.58

Finding the Fourth Proportional to 81,712.43, 112,750.86 and 45,895.58

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Solution

The fourth proportional to 81,712.43, 112,750.86 and 45,895.58 is: 63,329.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,712.43 : 112,750.86 = 45,895.58 : x
  2. Step 2: Convert to fraction form
    81,712.43/112,750.86 = 45,895.58/x
  3. Step 3: Cross multiply
    81,712.43x = 112,750.86 × 45,895.58
  4. Step 4: Simplify right side
    81,712.43x = 5,174,766,115.20
  5. Step 5: Solve for x
    x = 5,174,766,115.20/81,712.43
  6. Step 6: Final answer
    x = 63,329.00

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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.