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Finding the Fourth Proportional to 71,166.64, 98,215.06 and 39,334.86

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Solution

The fourth proportional to 71,166.64, 98,215.06 and 39,334.86 is: 54,284.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,166.64 : 98,215.06 = 39,334.86 : x
  2. Step 2: Convert to fraction form
    71,166.64/98,215.06 = 39,334.86/x
  3. Step 3: Cross multiply
    71,166.64x = 98,215.06 × 39,334.86
  4. Step 4: Simplify right side
    71,166.64x = 3,863,275,634.99
  5. Step 5: Solve for x
    x = 3,863,275,634.99/71,166.64
  6. Step 6: Final answer
    x = 54,284.92

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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.