Home / 71,123.72-106,684.20-21,237.62

Finding the Fourth Proportional to 71,123.72, 106,684.20 and 21,237.62

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Solution

The fourth proportional to 71,123.72, 106,684.20 and 21,237.62 is: 31,856.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,123.72 : 106,684.20 = 21,237.62 : x
  2. Step 2: Convert to fraction form
    71,123.72/106,684.20 = 21,237.62/x
  3. Step 3: Cross multiply
    71,123.72x = 106,684.20 × 21,237.62
  4. Step 4: Simplify right side
    71,123.72x = 2,265,717,966.18
  5. Step 5: Solve for x
    x = 2,265,717,966.18/71,123.72
  6. Step 6: Final answer
    x = 31,856.01

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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.