Home / 86,350.60-129,537.68-30,177.67

Finding the Fourth Proportional to 86,350.60, 129,537.68 and 30,177.67

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Solution

The fourth proportional to 86,350.60, 129,537.68 and 30,177.67 is: 45,270.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,350.60 : 129,537.68 = 30,177.67 : x
  2. Step 2: Convert to fraction form
    86,350.60/129,537.68 = 30,177.67/x
  3. Step 3: Cross multiply
    86,350.60x = 129,537.68 × 30,177.67
  4. Step 4: Simplify right side
    86,350.60x = 3,909,145,359.61
  5. Step 5: Solve for x
    x = 3,909,145,359.61/86,350.60
  6. Step 6: Final answer
    x = 45,270.62

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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.