Home / 68,477.16-94,489.76-40,172.52

Finding the Fourth Proportional to 68,477.16, 94,489.76 and 40,172.52

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Solution

The fourth proportional to 68,477.16, 94,489.76 and 40,172.52 is: 55,432.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,477.16 : 94,489.76 = 40,172.52 : x
  2. Step 2: Convert to fraction form
    68,477.16/94,489.76 = 40,172.52/x
  3. Step 3: Cross multiply
    68,477.16x = 94,489.76 × 40,172.52
  4. Step 4: Simplify right side
    68,477.16x = 3,795,891,773.40
  5. Step 5: Solve for x
    x = 3,795,891,773.40/68,477.16
  6. Step 6: Final answer
    x = 55,432.96

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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.