Home / 65,107.20-89,847.45-36,813.90

Finding the Fourth Proportional to 65,107.20, 89,847.45 and 36,813.90

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Solution

The fourth proportional to 65,107.20, 89,847.45 and 36,813.90 is: 50,802.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,107.20 : 89,847.45 = 36,813.90 : x
  2. Step 2: Convert to fraction form
    65,107.20/89,847.45 = 36,813.90/x
  3. Step 3: Cross multiply
    65,107.20x = 89,847.45 × 36,813.90
  4. Step 4: Simplify right side
    65,107.20x = 3,307,635,039.56
  5. Step 5: Solve for x
    x = 3,307,635,039.56/65,107.20
  6. Step 6: Final answer
    x = 50,802.91

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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.