Home / 85,461.05-117,935.80-47,223.23

Finding the Fourth Proportional to 85,461.05, 117,935.80 and 47,223.23

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Solution

The fourth proportional to 85,461.05, 117,935.80 and 47,223.23 is: 65,167.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,461.05 : 117,935.80 = 47,223.23 : x
  2. Step 2: Convert to fraction form
    85,461.05/117,935.80 = 47,223.23/x
  3. Step 3: Cross multiply
    85,461.05x = 117,935.80 × 47,223.23
  4. Step 4: Simplify right side
    85,461.05x = 5,569,309,778.90
  5. Step 5: Solve for x
    x = 5,569,309,778.90/85,461.05
  6. Step 6: Final answer
    x = 65,167.81

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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.