Home / 71,108.67-98,129.61-39,277.47

Finding the Fourth Proportional to 71,108.67, 98,129.61 and 39,277.47

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Solution

The fourth proportional to 71,108.67, 98,129.61 and 39,277.47 is: 54,202.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,108.67 : 98,129.61 = 39,277.47 : x
  2. Step 2: Convert to fraction form
    71,108.67/98,129.61 = 39,277.47/x
  3. Step 3: Cross multiply
    71,108.67x = 98,129.61 × 39,277.47
  4. Step 4: Simplify right side
    71,108.67x = 3,854,282,812.89
  5. Step 5: Solve for x
    x = 3,854,282,812.89/71,108.67
  6. Step 6: Final answer
    x = 54,202.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.