Home / 81,916.04-122,918.21-34,563.95

Finding the Fourth Proportional to 81,916.04, 122,918.21 and 34,563.95

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Solution

The fourth proportional to 81,916.04, 122,918.21 and 34,563.95 is: 51,864.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,916.04 : 122,918.21 = 34,563.95 : x
  2. Step 2: Convert to fraction form
    81,916.04/122,918.21 = 34,563.95/x
  3. Step 3: Cross multiply
    81,916.04x = 122,918.21 × 34,563.95
  4. Step 4: Simplify right side
    81,916.04x = 4,248,538,864.53
  5. Step 5: Solve for x
    x = 4,248,538,864.53/81,916.04
  6. Step 6: Final answer
    x = 51,864.55

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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.