Home / 83,917.52-125,878.79-20,737.62

Finding the Fourth Proportional to 83,917.52, 125,878.79 and 20,737.62

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Solution

The fourth proportional to 83,917.52, 125,878.79 and 20,737.62 is: 31,107.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,917.52 : 125,878.79 = 20,737.62 : x
  2. Step 2: Convert to fraction form
    83,917.52/125,878.79 = 20,737.62/x
  3. Step 3: Cross multiply
    83,917.52x = 125,878.79 × 20,737.62
  4. Step 4: Simplify right side
    83,917.52x = 2,610,426,409.39
  5. Step 5: Solve for x
    x = 2,610,426,409.39/83,917.52
  6. Step 6: Final answer
    x = 31,107.05

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1.5x scale

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.