Home / 52,439.66-78,665.98-19,175.40

Finding the Fourth Proportional to 52,439.66, 78,665.98 and 19,175.40

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Solution

The fourth proportional to 52,439.66, 78,665.98 and 19,175.40 is: 28,765.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,439.66 : 78,665.98 = 19,175.40 : x
  2. Step 2: Convert to fraction form
    52,439.66/78,665.98 = 19,175.40/x
  3. Step 3: Cross multiply
    52,439.66x = 78,665.98 × 19,175.40
  4. Step 4: Simplify right side
    52,439.66x = 1,508,451,632.89
  5. Step 5: Solve for x
    x = 1,508,451,632.89/52,439.66
  6. Step 6: Final answer
    x = 28,765.47

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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.