Home / 81,913.80-122,870.74-22,749.48

Finding the Fourth Proportional to 81,913.80, 122,870.74 and 22,749.48

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Solution

The fourth proportional to 81,913.80, 122,870.74 and 22,749.48 is: 34,124.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,913.80 : 122,870.74 = 22,749.48 : x
  2. Step 2: Convert to fraction form
    81,913.80/122,870.74 = 22,749.48/x
  3. Step 3: Cross multiply
    81,913.80x = 122,870.74 × 22,749.48
  4. Step 4: Simplify right side
    81,913.80x = 2,795,244,827.86
  5. Step 5: Solve for x
    x = 2,795,244,827.86/81,913.80
  6. Step 6: Final answer
    x = 34,124.22

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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.