Home / 52,448.13-78,699.51-20,851.44

Finding the Fourth Proportional to 52,448.13, 78,699.51 and 20,851.44

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Solution

The fourth proportional to 52,448.13, 78,699.51 and 20,851.44 is: 31,288.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,448.13 : 78,699.51 = 20,851.44 : x
  2. Step 2: Convert to fraction form
    52,448.13/78,699.51 = 20,851.44/x
  3. Step 3: Cross multiply
    52,448.13x = 78,699.51 × 20,851.44
  4. Step 4: Simplify right side
    52,448.13x = 1,640,998,110.79
  5. Step 5: Solve for x
    x = 1,640,998,110.79/52,448.13
  6. Step 6: Final answer
    x = 31,288.02

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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.