Home / 81,590.07-122,362.82-22,411.65

Finding the Fourth Proportional to 81,590.07, 122,362.82 and 22,411.65

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Solution

The fourth proportional to 81,590.07, 122,362.82 and 22,411.65 is: 33,611.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,590.07 : 122,362.82 = 22,411.65 : x
  2. Step 2: Convert to fraction form
    81,590.07/122,362.82 = 22,411.65/x
  3. Step 3: Cross multiply
    81,590.07x = 122,362.82 × 22,411.65
  4. Step 4: Simplify right side
    81,590.07x = 2,742,352,582.79
  5. Step 5: Solve for x
    x = 2,742,352,582.79/81,590.07
  6. Step 6: Final answer
    x = 33,611.35

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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.