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Finding the Fourth Proportional to 85,080.87, 127,621.34 and 35,106.06

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Solution

The fourth proportional to 85,080.87, 127,621.34 and 35,106.06 is: 52,659.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,080.87 : 127,621.34 = 35,106.06 : x
  2. Step 2: Convert to fraction form
    85,080.87/127,621.34 = 35,106.06/x
  3. Step 3: Cross multiply
    85,080.87x = 127,621.34 × 35,106.06
  4. Step 4: Simplify right side
    85,080.87x = 4,480,282,419.32
  5. Step 5: Solve for x
    x = 4,480,282,419.32/85,080.87
  6. Step 6: Final answer
    x = 52,659.10

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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.