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Finding the Fourth Proportional to 71,080.32, 98,090.84 and 39,249.28

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Solution

The fourth proportional to 71,080.32, 98,090.84 and 39,249.28 is: 54,164.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,080.32 : 98,090.84 = 39,249.28 : x
  2. Step 2: Convert to fraction form
    71,080.32/98,090.84 = 39,249.28/x
  3. Step 3: Cross multiply
    71,080.32x = 98,090.84 × 39,249.28
  4. Step 4: Simplify right side
    71,080.32x = 3,849,994,844.60
  5. Step 5: Solve for x
    x = 3,849,994,844.60/71,080.32
  6. Step 6: Final answer
    x = 54,164.01

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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.