Home / 68,715.10-94,824.93-40,422.70

Finding the Fourth Proportional to 68,715.10, 94,824.93 and 40,422.70

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Solution

The fourth proportional to 68,715.10, 94,824.93 and 40,422.70 is: 55,782.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,715.10 : 94,824.93 = 40,422.70 : x
  2. Step 2: Convert to fraction form
    68,715.10/94,824.93 = 40,422.70/x
  3. Step 3: Cross multiply
    68,715.10x = 94,824.93 × 40,422.70
  4. Step 4: Simplify right side
    68,715.10x = 3,833,079,697.91
  5. Step 5: Solve for x
    x = 3,833,079,697.91/68,715.10
  6. Step 6: Final answer
    x = 55,782.20

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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.