Home / 68,964.66-103,439.21-19,051.88

Finding the Fourth Proportional to 68,964.66, 103,439.21 and 19,051.88

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Solution

The fourth proportional to 68,964.66, 103,439.21 and 19,051.88 is: 28,575.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,964.66 : 103,439.21 = 19,051.88 : x
  2. Step 2: Convert to fraction form
    68,964.66/103,439.21 = 19,051.88/x
  3. Step 3: Cross multiply
    68,964.66x = 103,439.21 × 19,051.88
  4. Step 4: Simplify right side
    68,964.66x = 1,970,710,803.76
  5. Step 5: Solve for x
    x = 1,970,710,803.76/68,964.66
  6. Step 6: Final answer
    x = 28,575.66

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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.