Home / 81,273.59-112,180.09-47,288.64

Finding the Fourth Proportional to 81,273.59, 112,180.09 and 47,288.64

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Solution

The fourth proportional to 81,273.59, 112,180.09 and 47,288.64 is: 65,271.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,273.59 : 112,180.09 = 47,288.64 : x
  2. Step 2: Convert to fraction form
    81,273.59/112,180.09 = 47,288.64/x
  3. Step 3: Cross multiply
    81,273.59x = 112,180.09 × 47,288.64
  4. Step 4: Simplify right side
    81,273.59x = 5,304,843,891.18
  5. Step 5: Solve for x
    x = 5,304,843,891.18/81,273.59
  6. Step 6: Final answer
    x = 65,271.44

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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.