Home / 85,243.26-117,632.79-47,002.20

Finding the Fourth Proportional to 85,243.26, 117,632.79 and 47,002.20

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Solution

The fourth proportional to 85,243.26, 117,632.79 and 47,002.20 is: 64,861.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,243.26 : 117,632.79 = 47,002.20 : x
  2. Step 2: Convert to fraction form
    85,243.26/117,632.79 = 47,002.20/x
  3. Step 3: Cross multiply
    85,243.26x = 117,632.79 × 47,002.20
  4. Step 4: Simplify right side
    85,243.26x = 5,528,999,922.14
  5. Step 5: Solve for x
    x = 5,528,999,922.14/85,243.26
  6. Step 6: Final answer
    x = 64,861.43

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1.5x scale

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.