Home / 83,377.49-115,078.79-53,155.85

Finding the Fourth Proportional to 83,377.49, 115,078.79 and 53,155.85

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Solution

The fourth proportional to 83,377.49, 115,078.79 and 53,155.85 is: 73,366.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,377.49 : 115,078.79 = 53,155.85 : x
  2. Step 2: Convert to fraction form
    83,377.49/115,078.79 = 53,155.85/x
  3. Step 3: Cross multiply
    83,377.49x = 115,078.79 × 53,155.85
  4. Step 4: Simplify right side
    83,377.49x = 6,117,110,456.92
  5. Step 5: Solve for x
    x = 6,117,110,456.92/83,377.49
  6. Step 6: Final answer
    x = 73,366.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.