Home / 45,267.02-67,878.66-18,964.70

Finding the Fourth Proportional to 45,267.02, 67,878.66 and 18,964.70

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Solution

The fourth proportional to 45,267.02, 67,878.66 and 18,964.70 is: 28,437.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,267.02 : 67,878.66 = 18,964.70 : x
  2. Step 2: Convert to fraction form
    45,267.02/67,878.66 = 18,964.70/x
  3. Step 3: Cross multiply
    45,267.02x = 67,878.66 × 18,964.70
  4. Step 4: Simplify right side
    45,267.02x = 1,287,297,989.09
  5. Step 5: Solve for x
    x = 1,287,297,989.09/45,267.02
  6. Step 6: Final answer
    x = 28,437.88

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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.