Home / 351,429.53-527,139.62-85,192.43

Finding the Fourth Proportional to 351,429.53, 527,139.62 and 85,192.43

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Solution

The fourth proportional to 351,429.53, 527,139.62 and 85,192.43 is: 127,787.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,429.53 : 527,139.62 = 85,192.43 : x
  2. Step 2: Convert to fraction form
    351,429.53/527,139.62 = 85,192.43/x
  3. Step 3: Cross multiply
    351,429.53x = 527,139.62 × 85,192.43
  4. Step 4: Simplify right side
    351,429.53x = 44,908,304,751.11
  5. Step 5: Solve for x
    x = 44,908,304,751.11/351,429.53
  6. Step 6: Final answer
    x = 127,787.51

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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.