Home / 71,014.56-106,521.60-39,871.68

Finding the Fourth Proportional to 71,014.56, 106,521.60 and 39,871.68

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Solution

The fourth proportional to 71,014.56, 106,521.60 and 39,871.68 is: 59,807.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,014.56 : 106,521.60 = 39,871.68 : x
  2. Step 2: Convert to fraction form
    71,014.56/106,521.60 = 39,871.68/x
  3. Step 3: Cross multiply
    71,014.56x = 106,521.60 × 39,871.68
  4. Step 4: Simplify right side
    71,014.56x = 4,247,195,148.29
  5. Step 5: Solve for x
    x = 4,247,195,148.29/71,014.56
  6. Step 6: Final answer
    x = 59,807.39

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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.