Home / 81,627.41-112,637.17-45,821.36

Finding the Fourth Proportional to 81,627.41, 112,637.17 and 45,821.36

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Solution

The fourth proportional to 81,627.41, 112,637.17 and 45,821.36 is: 63,228.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,627.41 : 112,637.17 = 45,821.36 : x
  2. Step 2: Convert to fraction form
    81,627.41/112,637.17 = 45,821.36/x
  3. Step 3: Cross multiply
    81,627.41x = 112,637.17 × 45,821.36
  4. Step 4: Simplify right side
    81,627.41x = 5,161,188,315.95
  5. Step 5: Solve for x
    x = 5,161,188,315.95/81,627.41
  6. Step 6: Final answer
    x = 63,228.62

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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.