Home / 68,411.10-94,423.06-40,125.90

Finding the Fourth Proportional to 68,411.10, 94,423.06 and 40,125.90

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Solution

The fourth proportional to 68,411.10, 94,423.06 and 40,125.90 is: 55,382.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,411.10 : 94,423.06 = 40,125.90 : x
  2. Step 2: Convert to fraction form
    68,411.10/94,423.06 = 40,125.90/x
  3. Step 3: Cross multiply
    68,411.10x = 94,423.06 × 40,125.90
  4. Step 4: Simplify right side
    68,411.10x = 3,788,809,690.82
  5. Step 5: Solve for x
    x = 3,788,809,690.82/68,411.10
  6. Step 6: Final answer
    x = 55,382.97

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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.