Home / 74,716.18-103,108.37-42,450.86

Finding the Fourth Proportional to 74,716.18, 103,108.37 and 42,450.86

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Solution

The fourth proportional to 74,716.18, 103,108.37 and 42,450.86 is: 58,582.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,716.18 : 103,108.37 = 42,450.86 : x
  2. Step 2: Convert to fraction form
    74,716.18/103,108.37 = 42,450.86/x
  3. Step 3: Cross multiply
    74,716.18x = 103,108.37 × 42,450.86
  4. Step 4: Simplify right side
    74,716.18x = 4,377,038,979.70
  5. Step 5: Solve for x
    x = 4,377,038,979.70/74,716.18
  6. Step 6: Final answer
    x = 58,582.21

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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.