Home / 71,438.94-107,150.19-18,852.53

Finding the Fourth Proportional to 71,438.94, 107,150.19 and 18,852.53

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Solution

The fourth proportional to 71,438.94, 107,150.19 and 18,852.53 is: 28,276.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,438.94 : 107,150.19 = 18,852.53 : x
  2. Step 2: Convert to fraction form
    71,438.94/107,150.19 = 18,852.53/x
  3. Step 3: Cross multiply
    71,438.94x = 107,150.19 × 18,852.53
  4. Step 4: Simplify right side
    71,438.94x = 2,020,051,635.73
  5. Step 5: Solve for x
    x = 2,020,051,635.73/71,438.94
  6. Step 6: Final answer
    x = 28,276.62

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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.