Home / 52,451.68-78,630.26-19,148.36

Finding the Fourth Proportional to 52,451.68, 78,630.26 and 19,148.36

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Solution

The fourth proportional to 52,451.68, 78,630.26 and 19,148.36 is: 28,705.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,451.68 : 78,630.26 = 19,148.36 : x
  2. Step 2: Convert to fraction form
    52,451.68/78,630.26 = 19,148.36/x
  3. Step 3: Cross multiply
    52,451.68x = 78,630.26 × 19,148.36
  4. Step 4: Simplify right side
    52,451.68x = 1,505,640,525.37
  5. Step 5: Solve for x
    x = 1,505,640,525.37/52,451.68
  6. Step 6: Final answer
    x = 28,705.29

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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.