Home / 86,634.24-129,992.67-47,190.48

Finding the Fourth Proportional to 86,634.24, 129,992.67 and 47,190.48

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Solution

The fourth proportional to 86,634.24, 129,992.67 and 47,190.48 is: 70,808.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,634.24 : 129,992.67 = 47,190.48 : x
  2. Step 2: Convert to fraction form
    86,634.24/129,992.67 = 47,190.48/x
  3. Step 3: Cross multiply
    86,634.24x = 129,992.67 × 47,190.48
  4. Step 4: Simplify right side
    86,634.24x = 6,134,416,493.78
  5. Step 5: Solve for x
    x = 6,134,416,493.78/86,634.24
  6. Step 6: Final answer
    x = 70,808.22

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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.