Home / 115,074.75-172,614.29-31,970.91

Finding the Fourth Proportional to 115,074.75, 172,614.29 and 31,970.91

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Solution

The fourth proportional to 115,074.75, 172,614.29 and 31,970.91 is: 47,956.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,074.75 : 172,614.29 = 31,970.91 : x
  2. Step 2: Convert to fraction form
    115,074.75/172,614.29 = 31,970.91/x
  3. Step 3: Cross multiply
    115,074.75x = 172,614.29 × 31,970.91
  4. Step 4: Simplify right side
    115,074.75x = 5,518,635,770.45
  5. Step 5: Solve for x
    x = 5,518,635,770.45/115,074.75
  6. Step 6: Final answer
    x = 47,956.97

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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.