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Finding the Fourth Proportional to 71,046.81, 98,037.60 and 39,213.64

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Solution

The fourth proportional to 71,046.81, 98,037.60 and 39,213.64 is: 54,110.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,046.81 : 98,037.60 = 39,213.64 : x
  2. Step 2: Convert to fraction form
    71,046.81/98,037.60 = 39,213.64/x
  3. Step 3: Cross multiply
    71,046.81x = 98,037.60 × 39,213.64
  4. Step 4: Simplify right side
    71,046.81x = 3,844,411,152.86
  5. Step 5: Solve for x
    x = 3,844,411,152.86/71,046.81
  6. Step 6: Final answer
    x = 54,110.96

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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.