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Finding the Fourth Proportional to 71,533.80, 107,268.30 and 27,145.80

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Solution

The fourth proportional to 71,533.80, 107,268.30 and 27,145.80 is: 40,706.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,533.80 : 107,268.30 = 27,145.80 : x
  2. Step 2: Convert to fraction form
    71,533.80/107,268.30 = 27,145.80/x
  3. Step 3: Cross multiply
    71,533.80x = 107,268.30 × 27,145.80
  4. Step 4: Simplify right side
    71,533.80x = 2,911,883,818.14
  5. Step 5: Solve for x
    x = 2,911,883,818.14/71,533.80
  6. Step 6: Final answer
    x = 40,706.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.