Home / 115,035.78-172,553.70-31,929.78

Finding the Fourth Proportional to 115,035.78, 172,553.70 and 31,929.78

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Solution

The fourth proportional to 115,035.78, 172,553.70 and 31,929.78 is: 47,894.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,035.78 : 172,553.70 = 31,929.78 : x
  2. Step 2: Convert to fraction form
    115,035.78/172,553.70 = 31,929.78/x
  3. Step 3: Cross multiply
    115,035.78x = 172,553.70 × 31,929.78
  4. Step 4: Simplify right side
    115,035.78x = 5,509,601,679.19
  5. Step 5: Solve for x
    x = 5,509,601,679.19/115,035.78
  6. Step 6: Final answer
    x = 47,894.68

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1.5x scale

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.