Home / 68,818.02-103,215.99-18,886.47

Finding the Fourth Proportional to 68,818.02, 103,215.99 and 18,886.47

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Solution

The fourth proportional to 68,818.02, 103,215.99 and 18,886.47 is: 28,326.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,818.02 : 103,215.99 = 18,886.47 : x
  2. Step 2: Convert to fraction form
    68,818.02/103,215.99 = 18,886.47/x
  3. Step 3: Cross multiply
    68,818.02x = 103,215.99 × 18,886.47
  4. Step 4: Simplify right side
    68,818.02x = 1,949,385,698.66
  5. Step 5: Solve for x
    x = 1,949,385,698.66/68,818.02
  6. Step 6: Final answer
    x = 28,326.68

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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.