Home / 81,273.41-112,112.16-47,278.07

Finding the Fourth Proportional to 81,273.41, 112,112.16 and 47,278.07

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Solution

The fourth proportional to 81,273.41, 112,112.16 and 47,278.07 is: 65,217.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,273.41 : 112,112.16 = 47,278.07 : x
  2. Step 2: Convert to fraction form
    81,273.41/112,112.16 = 47,278.07/x
  3. Step 3: Cross multiply
    81,273.41x = 112,112.16 × 47,278.07
  4. Step 4: Simplify right side
    81,273.41x = 5,300,446,548.33
  5. Step 5: Solve for x
    x = 5,300,446,548.33/81,273.41
  6. Step 6: Final answer
    x = 65,217.47

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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.