Home / 45,851.30-68,712.15-28,268.90

Finding the Fourth Proportional to 45,851.30, 68,712.15 and 28,268.90

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Solution

The fourth proportional to 45,851.30, 68,712.15 and 28,268.90 is: 42,363.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,851.30 : 68,712.15 = 28,268.90 : x
  2. Step 2: Convert to fraction form
    45,851.30/68,712.15 = 28,268.90/x
  3. Step 3: Cross multiply
    45,851.30x = 68,712.15 × 28,268.90
  4. Step 4: Simplify right side
    45,851.30x = 1,942,416,897.14
  5. Step 5: Solve for x
    x = 1,942,416,897.14/45,851.30
  6. Step 6: Final answer
    x = 42,363.40

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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.