Home / 71,027.10-106,557.21-21,107.58

Finding the Fourth Proportional to 71,027.10, 106,557.21 and 21,107.58

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Solution

The fourth proportional to 71,027.10, 106,557.21 and 21,107.58 is: 31,666.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,027.10 : 106,557.21 = 21,107.58 : x
  2. Step 2: Convert to fraction form
    71,027.10/106,557.21 = 21,107.58/x
  3. Step 3: Cross multiply
    71,027.10x = 106,557.21 × 21,107.58
  4. Step 4: Simplify right side
    71,027.10x = 2,249,164,834.65
  5. Step 5: Solve for x
    x = 2,249,164,834.65/71,027.10
  6. Step 6: Final answer
    x = 31,666.29

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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.