Home / 68,719.30-94,828.17-40,419.52

Finding the Fourth Proportional to 68,719.30, 94,828.17 and 40,419.52

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Solution

The fourth proportional to 68,719.30, 94,828.17 and 40,419.52 is: 55,776.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,719.30 : 94,828.17 = 40,419.52 : x
  2. Step 2: Convert to fraction form
    68,719.30/94,828.17 = 40,419.52/x
  3. Step 3: Cross multiply
    68,719.30x = 94,828.17 × 40,419.52
  4. Step 4: Simplify right side
    68,719.30x = 3,832,909,113.88
  5. Step 5: Solve for x
    x = 3,832,909,113.88/68,719.30
  6. Step 6: Final answer
    x = 55,776.31

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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.