Home / 74,050.94-102,195.78-42,220.64

Finding the Fourth Proportional to 74,050.94, 102,195.78 and 42,220.64

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Solution

The fourth proportional to 74,050.94, 102,195.78 and 42,220.64 is: 58,267.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,050.94 : 102,195.78 = 42,220.64 : x
  2. Step 2: Convert to fraction form
    74,050.94/102,195.78 = 42,220.64/x
  3. Step 3: Cross multiply
    74,050.94x = 102,195.78 × 42,220.64
  4. Step 4: Simplify right side
    74,050.94x = 4,314,771,236.90
  5. Step 5: Solve for x
    x = 4,314,771,236.90/74,050.94
  6. Step 6: Final answer
    x = 58,267.61

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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.