Home / 75,783.30-113,480.55-72,284.10

Finding the Fourth Proportional to 75,783.30, 113,480.55 and 72,284.10

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Solution

The fourth proportional to 75,783.30, 113,480.55 and 72,284.10 is: 108,240.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,783.30 : 113,480.55 = 72,284.10 : x
  2. Step 2: Convert to fraction form
    75,783.30/113,480.55 = 72,284.10/x
  3. Step 3: Cross multiply
    75,783.30x = 113,480.55 × 72,284.10
  4. Step 4: Simplify right side
    75,783.30x = 8,202,839,424.26
  5. Step 5: Solve for x
    x = 8,202,839,424.26/75,783.30
  6. Step 6: Final answer
    x = 108,240.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.