Home / 81,487.04-112,451.96-49,656

Finding the Fourth Proportional to 81,487.04, 112,451.96 and 49,656

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Solution

The fourth proportional to 81,487.04, 112,451.96 and 49,656 is: 68,525.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,487.04 : 112,451.96 = 49,656 : x
  2. Step 2: Convert to fraction form
    81,487.04/112,451.96 = 49,656/x
  3. Step 3: Cross multiply
    81,487.04x = 112,451.96 × 49,656
  4. Step 4: Simplify right side
    81,487.04x = 5,583,914,525.76
  5. Step 5: Solve for x
    x = 5,583,914,525.76/81,487.04
  6. Step 6: Final answer
    x = 68,525.19

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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.