Home / 85,342.48-117,770.17-47,615.92

Finding the Fourth Proportional to 85,342.48, 117,770.17 and 47,615.92

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Solution

The fourth proportional to 85,342.48, 117,770.17 and 47,615.92 is: 65,708.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,342.48 : 117,770.17 = 47,615.92 : x
  2. Step 2: Convert to fraction form
    85,342.48/117,770.17 = 47,615.92/x
  3. Step 3: Cross multiply
    85,342.48x = 117,770.17 × 47,615.92
  4. Step 4: Simplify right side
    85,342.48x = 5,607,734,285.22
  5. Step 5: Solve for x
    x = 5,607,734,285.22/85,342.48
  6. Step 6: Final answer
    x = 65,708.60

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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.