Home / 81,277.68-121,916.52-34,497.78

Finding the Fourth Proportional to 81,277.68, 121,916.52 and 34,497.78

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Solution

The fourth proportional to 81,277.68, 121,916.52 and 34,497.78 is: 51,746.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,277.68 : 121,916.52 = 34,497.78 : x
  2. Step 2: Convert to fraction form
    81,277.68/121,916.52 = 34,497.78/x
  3. Step 3: Cross multiply
    81,277.68x = 121,916.52 × 34,497.78
  4. Step 4: Simplify right side
    81,277.68x = 4,205,849,285.33
  5. Step 5: Solve for x
    x = 4,205,849,285.33/81,277.68
  6. Step 6: Final answer
    x = 51,746.67

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Similar ratio
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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.