Home / 81,865.49-122,798.25-22,701.15

Finding the Fourth Proportional to 81,865.49, 122,798.25 and 22,701.15

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Solution

The fourth proportional to 81,865.49, 122,798.25 and 22,701.15 is: 34,051.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,865.49 : 122,798.25 = 22,701.15 : x
  2. Step 2: Convert to fraction form
    81,865.49/122,798.25 = 22,701.15/x
  3. Step 3: Cross multiply
    81,865.49x = 122,798.25 × 22,701.15
  4. Step 4: Simplify right side
    81,865.49x = 2,787,662,017.58
  5. Step 5: Solve for x
    x = 2,787,662,017.58/81,865.49
  6. Step 6: Final answer
    x = 34,051.74

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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.