Home / 61,120.98-91,695.24-21,678.03

Finding the Fourth Proportional to 61,120.98, 91,695.24 and 21,678.03

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Solution

The fourth proportional to 61,120.98, 91,695.24 and 21,678.03 is: 32,521.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,120.98 : 91,695.24 = 21,678.03 : x
  2. Step 2: Convert to fraction form
    61,120.98/91,695.24 = 21,678.03/x
  3. Step 3: Cross multiply
    61,120.98x = 91,695.24 × 21,678.03
  4. Step 4: Simplify right side
    61,120.98x = 1,987,772,163.58
  5. Step 5: Solve for x
    x = 1,987,772,163.58/61,120.98
  6. Step 6: Final answer
    x = 32,521.93

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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.