Home / 81,869.45-122,804.15-36,838.18

Finding the Fourth Proportional to 81,869.45, 122,804.15 and 36,838.18

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Solution

The fourth proportional to 81,869.45, 122,804.15 and 36,838.18 is: 55,257.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,869.45 : 122,804.15 = 36,838.18 : x
  2. Step 2: Convert to fraction form
    81,869.45/122,804.15 = 36,838.18/x
  3. Step 3: Cross multiply
    81,869.45x = 122,804.15 × 36,838.18
  4. Step 4: Simplify right side
    81,869.45x = 4,523,881,192.00
  5. Step 5: Solve for x
    x = 4,523,881,192.00/81,869.45
  6. Step 6: Final answer
    x = 55,257.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.