Home / 68,439.12-94,443.32-42,959.16

Finding the Fourth Proportional to 68,439.12, 94,443.32 and 42,959.16

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Solution

The fourth proportional to 68,439.12, 94,443.32 and 42,959.16 is: 59,281.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,439.12 : 94,443.32 = 42,959.16 : x
  2. Step 2: Convert to fraction form
    68,439.12/94,443.32 = 42,959.16/x
  3. Step 3: Cross multiply
    68,439.12x = 94,443.32 × 42,959.16
  4. Step 4: Simplify right side
    68,439.12x = 4,057,205,694.81
  5. Step 5: Solve for x
    x = 4,057,205,694.81/68,439.12
  6. Step 6: Final answer
    x = 59,281.97

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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.