Home / 72,438.03-108,635.98-28,054.89

Finding the Fourth Proportional to 72,438.03, 108,635.98 and 28,054.89

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Solution

The fourth proportional to 72,438.03, 108,635.98 and 28,054.89 is: 42,074.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,438.03 : 108,635.98 = 28,054.89 : x
  2. Step 2: Convert to fraction form
    72,438.03/108,635.98 = 28,054.89/x
  3. Step 3: Cross multiply
    72,438.03x = 108,635.98 × 28,054.89
  4. Step 4: Simplify right side
    72,438.03x = 3,047,770,468.94
  5. Step 5: Solve for x
    x = 3,047,770,468.94/72,438.03
  6. Step 6: Final answer
    x = 42,074.18

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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.