Home / 74,772.91-103,197.81-47,945.71

Finding the Fourth Proportional to 74,772.91, 103,197.81 and 47,945.71

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Solution

The fourth proportional to 74,772.91, 103,197.81 and 47,945.71 is: 66,172.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,772.91 : 103,197.81 = 47,945.71 : x
  2. Step 2: Convert to fraction form
    74,772.91/103,197.81 = 47,945.71/x
  3. Step 3: Cross multiply
    74,772.91x = 103,197.81 × 47,945.71
  4. Step 4: Simplify right side
    74,772.91x = 4,947,892,270.90
  5. Step 5: Solve for x
    x = 4,947,892,270.90/74,772.91
  6. Step 6: Final answer
    x = 66,172.26

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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.