Home / 75,737.28-104,455.92-66,642.96

Finding the Fourth Proportional to 75,737.28, 104,455.92 and 66,642.96

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Solution

The fourth proportional to 75,737.28, 104,455.92 and 66,642.96 is: 91,913.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,737.28 : 104,455.92 = 66,642.96 : x
  2. Step 2: Convert to fraction form
    75,737.28/104,455.92 = 66,642.96/x
  3. Step 3: Cross multiply
    75,737.28x = 104,455.92 × 66,642.96
  4. Step 4: Simplify right side
    75,737.28x = 6,961,251,698.32
  5. Step 5: Solve for x
    x = 6,961,251,698.32/75,737.28
  6. Step 6: Final answer
    x = 91,913.15

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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.