Home / 75,068.10-103,604.94-43,230.78

Finding the Fourth Proportional to 75,068.10, 103,604.94 and 43,230.78

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Solution

The fourth proportional to 75,068.10, 103,604.94 and 43,230.78 is: 59,664.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,068.10 : 103,604.94 = 43,230.78 : x
  2. Step 2: Convert to fraction form
    75,068.10/103,604.94 = 43,230.78/x
  3. Step 3: Cross multiply
    75,068.10x = 103,604.94 × 43,230.78
  4. Step 4: Simplify right side
    75,068.10x = 4,478,922,368.05
  5. Step 5: Solve for x
    x = 4,478,922,368.05/75,068.10
  6. Step 6: Final answer
    x = 59,664.79

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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.