Home / 65,209.62-89,986.77-36,913.62

Finding the Fourth Proportional to 65,209.62, 89,986.77 and 36,913.62

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Solution

The fourth proportional to 65,209.62, 89,986.77 and 36,913.62 is: 50,939.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,209.62 : 89,986.77 = 36,913.62 : x
  2. Step 2: Convert to fraction form
    65,209.62/89,986.77 = 36,913.62/x
  3. Step 3: Cross multiply
    65,209.62x = 89,986.77 × 36,913.62
  4. Step 4: Simplify right side
    65,209.62x = 3,321,737,432.81
  5. Step 5: Solve for x
    x = 3,321,737,432.81/65,209.62
  6. Step 6: Final answer
    x = 50,939.38

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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.