Home / 86,149.22-129,231.93-25,359.52

Finding the Fourth Proportional to 86,149.22, 129,231.93 and 25,359.52

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Solution

The fourth proportional to 86,149.22, 129,231.93 and 25,359.52 is: 38,041.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,149.22 : 129,231.93 = 25,359.52 : x
  2. Step 2: Convert to fraction form
    86,149.22/129,231.93 = 25,359.52/x
  3. Step 3: Cross multiply
    86,149.22x = 129,231.93 × 25,359.52
  4. Step 4: Simplify right side
    86,149.22x = 3,277,259,909.76
  5. Step 5: Solve for x
    x = 3,277,259,909.76/86,149.22
  6. Step 6: Final answer
    x = 38,041.67

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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.