Home / 73,157.17-109,781.88-28,778.15

Finding the Fourth Proportional to 73,157.17, 109,781.88 and 28,778.15

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Solution

The fourth proportional to 73,157.17, 109,781.88 and 28,778.15 is: 43,185.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,157.17 : 109,781.88 = 28,778.15 : x
  2. Step 2: Convert to fraction form
    73,157.17/109,781.88 = 28,778.15/x
  3. Step 3: Cross multiply
    73,157.17x = 109,781.88 × 28,778.15
  4. Step 4: Simplify right side
    73,157.17x = 3,159,319,266.03
  5. Step 5: Solve for x
    x = 3,159,319,266.03/73,157.17
  6. Step 6: Final answer
    x = 43,185.37

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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.