Home / 42,619.20-64,005.60-41,236.80

Finding the Fourth Proportional to 42,619.20, 64,005.60 and 41,236.80

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Solution

The fourth proportional to 42,619.20, 64,005.60 and 41,236.80 is: 61,929.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,619.20 : 64,005.60 = 41,236.80 : x
  2. Step 2: Convert to fraction form
    42,619.20/64,005.60 = 41,236.80/x
  3. Step 3: Cross multiply
    42,619.20x = 64,005.60 × 41,236.80
  4. Step 4: Simplify right side
    42,619.20x = 2,639,386,126.08
  5. Step 5: Solve for x
    x = 2,639,386,126.08/42,619.20
  6. Step 6: Final answer
    x = 61,929.51

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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.