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Finding the Fourth Proportional to 71,173.84, 98,216.04 and 39,340.69

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Solution

The fourth proportional to 71,173.84, 98,216.04 and 39,340.69 is: 54,288.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,173.84 : 98,216.04 = 39,340.69 : x
  2. Step 2: Convert to fraction form
    71,173.84/98,216.04 = 39,340.69/x
  3. Step 3: Cross multiply
    71,173.84x = 98,216.04 × 39,340.69
  4. Step 4: Simplify right side
    71,173.84x = 3,863,886,684.66
  5. Step 5: Solve for x
    x = 3,863,886,684.66/71,173.84
  6. Step 6: Final answer
    x = 54,288.02

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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.