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Finding the Fourth Proportional to 84,130.44, 126,168.35 and 27,955.47

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Solution

The fourth proportional to 84,130.44, 126,168.35 and 27,955.47 is: 41,924.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,130.44 : 126,168.35 = 27,955.47 : x
  2. Step 2: Convert to fraction form
    84,130.44/126,168.35 = 27,955.47/x
  3. Step 3: Cross multiply
    84,130.44x = 126,168.35 × 27,955.47
  4. Step 4: Simplify right side
    84,130.44x = 3,527,095,593.26
  5. Step 5: Solve for x
    x = 3,527,095,593.26/84,130.44
  6. Step 6: Final answer
    x = 41,924.13

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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.