Home / 81,627.42-112,637.16-45,821.37

Finding the Fourth Proportional to 81,627.42, 112,637.16 and 45,821.37

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Solution

The fourth proportional to 81,627.42, 112,637.16 and 45,821.37 is: 63,228.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,627.42 : 112,637.16 = 45,821.37 : x
  2. Step 2: Convert to fraction form
    81,627.42/112,637.16 = 45,821.37/x
  3. Step 3: Cross multiply
    81,627.42x = 112,637.16 × 45,821.37
  4. Step 4: Simplify right side
    81,627.42x = 5,161,188,984.11
  5. Step 5: Solve for x
    x = 5,161,188,984.11/81,627.42
  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.