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Finding the Fourth Proportional to 68,044.41, 102,078.86 and 28,041.12

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Solution

The fourth proportional to 68,044.41, 102,078.86 and 28,041.12 is: 42,066.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,044.41 : 102,078.86 = 28,041.12 : x
  2. Step 2: Convert to fraction form
    68,044.41/102,078.86 = 28,041.12/x
  3. Step 3: Cross multiply
    68,044.41x = 102,078.86 × 28,041.12
  4. Step 4: Simplify right side
    68,044.41x = 2,862,405,422.52
  5. Step 5: Solve for x
    x = 2,862,405,422.52/68,044.41
  6. Step 6: Final answer
    x = 42,066.72

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1.5x scale

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.