Home / 74,771.85-103,126.81-47,916.86

Finding the Fourth Proportional to 74,771.85, 103,126.81 and 47,916.86

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Solution

The fourth proportional to 74,771.85, 103,126.81 and 47,916.86 is: 66,087.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,771.85 : 103,126.81 = 47,916.86 : x
  2. Step 2: Convert to fraction form
    74,771.85/103,126.81 = 47,916.86/x
  3. Step 3: Cross multiply
    74,771.85x = 103,126.81 × 47,916.86
  4. Step 4: Simplify right side
    74,771.85x = 4,941,512,371.43
  5. Step 5: Solve for x
    x = 4,941,512,371.43/74,771.85
  6. Step 6: Final answer
    x = 66,087.87

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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.