Home / 45,489.28-68,308.02-28,069.84

Finding the Fourth Proportional to 45,489.28, 68,308.02 and 28,069.84

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Solution

The fourth proportional to 45,489.28, 68,308.02 and 28,069.84 is: 42,150.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,489.28 : 68,308.02 = 28,069.84 : x
  2. Step 2: Convert to fraction form
    45,489.28/68,308.02 = 28,069.84/x
  3. Step 3: Cross multiply
    45,489.28x = 68,308.02 × 28,069.84
  4. Step 4: Simplify right side
    45,489.28x = 1,917,395,192.12
  5. Step 5: Solve for x
    x = 1,917,395,192.12/45,489.28
  6. Step 6: Final answer
    x = 42,150.48

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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.