Home / 52,287.39-78,438.42-19,003.68

Finding the Fourth Proportional to 52,287.39, 78,438.42 and 19,003.68

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Solution

The fourth proportional to 52,287.39, 78,438.42 and 19,003.68 is: 28,508.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,287.39 : 78,438.42 = 19,003.68 : x
  2. Step 2: Convert to fraction form
    52,287.39/78,438.42 = 19,003.68/x
  3. Step 3: Cross multiply
    52,287.39x = 78,438.42 × 19,003.68
  4. Step 4: Simplify right side
    52,287.39x = 1,490,618,633.39
  5. Step 5: Solve for x
    x = 1,490,618,633.39/52,287.39
  6. Step 6: Final answer
    x = 28,508.19

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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.