Home / 115,008.30-172,512.45-31,902.30

Finding the Fourth Proportional to 115,008.30, 172,512.45 and 31,902.30

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Solution

The fourth proportional to 115,008.30, 172,512.45 and 31,902.30 is: 47,853.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,008.30 : 172,512.45 = 31,902.30 : x
  2. Step 2: Convert to fraction form
    115,008.30/172,512.45 = 31,902.30/x
  3. Step 3: Cross multiply
    115,008.30x = 172,512.45 × 31,902.30
  4. Step 4: Simplify right side
    115,008.30x = 5,503,543,933.64
  5. Step 5: Solve for x
    x = 5,503,543,933.64/115,008.30
  6. Step 6: Final answer
    x = 47,853.45

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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.