Home / 115,172.28-172,781.64-48,612.48

Finding the Fourth Proportional to 115,172.28, 172,781.64 and 48,612.48

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Solution

The fourth proportional to 115,172.28, 172,781.64 and 48,612.48 is: 72,928.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,172.28 : 172,781.64 = 48,612.48 : x
  2. Step 2: Convert to fraction form
    115,172.28/172,781.64 = 48,612.48/x
  3. Step 3: Cross multiply
    115,172.28x = 172,781.64 × 48,612.48
  4. Step 4: Simplify right side
    115,172.28x = 8,399,344,018.87
  5. Step 5: Solve for x
    x = 8,399,344,018.87/115,172.28
  6. Step 6: Final answer
    x = 72,928.52

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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.