Home / 81,346.90-122,009.10-25,225.60

Finding the Fourth Proportional to 81,346.90, 122,009.10 and 25,225.60

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Solution

The fourth proportional to 81,346.90, 122,009.10 and 25,225.60 is: 37,834.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,346.90 : 122,009.10 = 25,225.60 : x
  2. Step 2: Convert to fraction form
    81,346.90/122,009.10 = 25,225.60/x
  3. Step 3: Cross multiply
    81,346.90x = 122,009.10 × 25,225.60
  4. Step 4: Simplify right side
    81,346.90x = 3,077,752,752.96
  5. Step 5: Solve for x
    x = 3,077,752,752.96/81,346.90
  6. Step 6: Final answer
    x = 37,834.91

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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.