Home / 61,020.72-84,208.80-34,163.28

Finding the Fourth Proportional to 61,020.72, 84,208.80 and 34,163.28

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Solution

The fourth proportional to 61,020.72, 84,208.80 and 34,163.28 is: 47,145.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,020.72 : 84,208.80 = 34,163.28 : x
  2. Step 2: Convert to fraction form
    61,020.72/84,208.80 = 34,163.28/x
  3. Step 3: Cross multiply
    61,020.72x = 84,208.80 × 34,163.28
  4. Step 4: Simplify right side
    61,020.72x = 2,876,848,812.86
  5. Step 5: Solve for x
    x = 2,876,848,812.86/61,020.72
  6. Step 6: Final answer
    x = 47,145.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.