Home / 75,728.60-104,505.55-43,915.98

Finding the Fourth Proportional to 75,728.60, 104,505.55 and 43,915.98

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Solution

The fourth proportional to 75,728.60, 104,505.55 and 43,915.98 is: 60,604.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,728.60 : 104,505.55 = 43,915.98 : x
  2. Step 2: Convert to fraction form
    75,728.60/104,505.55 = 43,915.98/x
  3. Step 3: Cross multiply
    75,728.60x = 104,505.55 × 43,915.98
  4. Step 4: Simplify right side
    75,728.60x = 4,589,463,533.90
  5. Step 5: Solve for x
    x = 4,589,463,533.90/75,728.60
  6. Step 6: Final answer
    x = 60,604.10

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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.