Home / 42,418.20-63,627.30-39,210.60

Finding the Fourth Proportional to 42,418.20, 63,627.30 and 39,210.60

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Solution

The fourth proportional to 42,418.20, 63,627.30 and 39,210.60 is: 58,815.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,418.20 : 63,627.30 = 39,210.60 : x
  2. Step 2: Convert to fraction form
    42,418.20/63,627.30 = 39,210.60/x
  3. Step 3: Cross multiply
    42,418.20x = 63,627.30 × 39,210.60
  4. Step 4: Simplify right side
    42,418.20x = 2,494,864,609.38
  5. Step 5: Solve for x
    x = 2,494,864,609.38/42,418.20
  6. Step 6: Final answer
    x = 58,815.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.