Home / 80,883.40-111,617.56-45,072.64

Finding the Fourth Proportional to 80,883.40, 111,617.56 and 45,072.64

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Solution

The fourth proportional to 80,883.40, 111,617.56 and 45,072.64 is: 62,199.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,883.40 : 111,617.56 = 45,072.64 : x
  2. Step 2: Convert to fraction form
    80,883.40/111,617.56 = 45,072.64/x
  3. Step 3: Cross multiply
    80,883.40x = 111,617.56 × 45,072.64
  4. Step 4: Simplify right side
    80,883.40x = 5,030,898,099.56
  5. Step 5: Solve for x
    x = 5,030,898,099.56/80,883.40
  6. Step 6: Final answer
    x = 62,199.39

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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.