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Finding the Fourth Proportional to 68,507.96, 94,541.64 and 40,214.12

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Solution

The fourth proportional to 68,507.96, 94,541.64 and 40,214.12 is: 55,495.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,507.96 : 94,541.64 = 40,214.12 : x
  2. Step 2: Convert to fraction form
    68,507.96/94,541.64 = 40,214.12/x
  3. Step 3: Cross multiply
    68,507.96x = 94,541.64 × 40,214.12
  4. Step 4: Simplify right side
    68,507.96x = 3,801,908,855.96
  5. Step 5: Solve for x
    x = 3,801,908,855.96/68,507.96
  6. Step 6: Final answer
    x = 55,495.87

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1.5x scale

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.