Home / 351,815.50-527,723.67-85,574.17

Finding the Fourth Proportional to 351,815.50, 527,723.67 and 85,574.17

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Solution

The fourth proportional to 351,815.50, 527,723.67 and 85,574.17 is: 128,361.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,815.50 : 527,723.67 = 85,574.17 : x
  2. Step 2: Convert to fraction form
    351,815.50/527,723.67 = 85,574.17/x
  3. Step 3: Cross multiply
    351,815.50x = 527,723.67 × 85,574.17
  4. Step 4: Simplify right side
    351,815.50x = 45,159,515,049.60
  5. Step 5: Solve for x
    x = 45,159,515,049.60/351,815.50
  6. Step 6: Final answer
    x = 128,361.36

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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.