Home / 71,214.53-98,272.38-38,942.86

Finding the Fourth Proportional to 71,214.53, 98,272.38 and 38,942.86

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Solution

The fourth proportional to 71,214.53, 98,272.38 and 38,942.86 is: 53,739.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,214.53 : 98,272.38 = 38,942.86 : x
  2. Step 2: Convert to fraction form
    71,214.53/98,272.38 = 38,942.86/x
  3. Step 3: Cross multiply
    71,214.53x = 98,272.38 × 38,942.86
  4. Step 4: Simplify right side
    71,214.53x = 3,827,007,513.01
  5. Step 5: Solve for x
    x = 3,827,007,513.01/71,214.53
  6. Step 6: Final answer
    x = 53,739.14

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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.