Home / 81,913.73-122,870.63-22,749.39

Finding the Fourth Proportional to 81,913.73, 122,870.63 and 22,749.39

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Solution

The fourth proportional to 81,913.73, 122,870.63 and 22,749.39 is: 34,124.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,913.73 : 122,870.63 = 22,749.39 : x
  2. Step 2: Convert to fraction form
    81,913.73/122,870.63 = 22,749.39/x
  3. Step 3: Cross multiply
    81,913.73x = 122,870.63 × 22,749.39
  4. Step 4: Simplify right side
    81,913.73x = 2,795,231,938.29
  5. Step 5: Solve for x
    x = 2,795,231,938.29/81,913.73
  6. Step 6: Final answer
    x = 34,124.10

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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.