Home / 84,824.21-127,184.07-28,659.02

Finding the Fourth Proportional to 84,824.21, 127,184.07 and 28,659.02

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Solution

The fourth proportional to 84,824.21, 127,184.07 and 28,659.02 is: 42,970.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,824.21 : 127,184.07 = 28,659.02 : x
  2. Step 2: Convert to fraction form
    84,824.21/127,184.07 = 28,659.02/x
  3. Step 3: Cross multiply
    84,824.21x = 127,184.07 × 28,659.02
  4. Step 4: Simplify right side
    84,824.21x = 3,644,970,277.36
  5. Step 5: Solve for x
    x = 3,644,970,277.36/84,824.21
  6. Step 6: Final answer
    x = 42,970.87

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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.