Home / 80,617.60-111,206.90-48,343.64

Finding the Fourth Proportional to 80,617.60, 111,206.90 and 48,343.64

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Solution

The fourth proportional to 80,617.60, 111,206.90 and 48,343.64 is: 66,687.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,617.60 : 111,206.90 = 48,343.64 : x
  2. Step 2: Convert to fraction form
    80,617.60/111,206.90 = 48,343.64/x
  3. Step 3: Cross multiply
    80,617.60x = 111,206.90 × 48,343.64
  4. Step 4: Simplify right side
    80,617.60x = 5,376,145,767.97
  5. Step 5: Solve for x
    x = 5,376,145,767.97/80,617.60
  6. Step 6: Final answer
    x = 66,687.00

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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.