Home / 45,919.04-68,869.43-12,630.50

Finding the Fourth Proportional to 45,919.04, 68,869.43 and 12,630.50

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Solution

The fourth proportional to 45,919.04, 68,869.43 and 12,630.50 is: 18,943.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,919.04 : 68,869.43 = 12,630.50 : x
  2. Step 2: Convert to fraction form
    45,919.04/68,869.43 = 12,630.50/x
  3. Step 3: Cross multiply
    45,919.04x = 68,869.43 × 12,630.50
  4. Step 4: Simplify right side
    45,919.04x = 869,855,335.62
  5. Step 5: Solve for x
    x = 869,855,335.62/45,919.04
  6. Step 6: Final answer
    x = 18,943.24

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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.