Home / 83,936.70-125,905.05-64,909.80

Finding the Fourth Proportional to 83,936.70, 125,905.05 and 64,909.80

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Solution

The fourth proportional to 83,936.70, 125,905.05 and 64,909.80 is: 97,364.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,936.70 : 125,905.05 = 64,909.80 : x
  2. Step 2: Convert to fraction form
    83,936.70/125,905.05 = 64,909.80/x
  3. Step 3: Cross multiply
    83,936.70x = 125,905.05 × 64,909.80
  4. Step 4: Simplify right side
    83,936.70x = 8,172,471,614.49
  5. Step 5: Solve for x
    x = 8,172,471,614.49/83,936.70
  6. Step 6: Final answer
    x = 97,364.70

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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.