Home / 78,682.86-108,573.21-48,040.56

Finding the Fourth Proportional to 78,682.86, 108,573.21 and 48,040.56

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Solution

The fourth proportional to 78,682.86, 108,573.21 and 48,040.56 is: 66,290.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,682.86 : 108,573.21 = 48,040.56 : x
  2. Step 2: Convert to fraction form
    78,682.86/108,573.21 = 48,040.56/x
  3. Step 3: Cross multiply
    78,682.86x = 108,573.21 × 48,040.56
  4. Step 4: Simplify right side
    78,682.86x = 5,215,917,809.40
  5. Step 5: Solve for x
    x = 5,215,917,809.40/78,682.86
  6. Step 6: Final answer
    x = 66,290.39

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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.