Home / 84,868.32-127,296-28,713.12

Finding the Fourth Proportional to 84,868.32, 127,296 and 28,713.12

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Solution

The fourth proportional to 84,868.32, 127,296 and 28,713.12 is: 43,067.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,868.32 : 127,296 = 28,713.12 : x
  2. Step 2: Convert to fraction form
    84,868.32/127,296 = 28,713.12/x
  3. Step 3: Cross multiply
    84,868.32x = 127,296 × 28,713.12
  4. Step 4: Simplify right side
    84,868.32x = 3,655,065,323.52
  5. Step 5: Solve for x
    x = 3,655,065,323.52/84,868.32
  6. Step 6: Final answer
    x = 43,067.49

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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.