Home / 81,495.08-112,462.20-45,685.04

Finding the Fourth Proportional to 81,495.08, 112,462.20 and 45,685.04

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Solution

The fourth proportional to 81,495.08, 112,462.20 and 45,685.04 is: 63,044.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,495.08 : 112,462.20 = 45,685.04 : x
  2. Step 2: Convert to fraction form
    81,495.08/112,462.20 = 45,685.04/x
  3. Step 3: Cross multiply
    81,495.08x = 112,462.20 × 45,685.04
  4. Step 4: Simplify right side
    81,495.08x = 5,137,840,105.49
  5. Step 5: Solve for x
    x = 5,137,840,105.49/81,495.08
  6. Step 6: Final answer
    x = 63,044.79

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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.