Home / 84,720.80-126,998.57-40,335.63

Finding the Fourth Proportional to 84,720.80, 126,998.57 and 40,335.63

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Solution

The fourth proportional to 84,720.80, 126,998.57 and 40,335.63 is: 60,464.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,720.80 : 126,998.57 = 40,335.63 : x
  2. Step 2: Convert to fraction form
    84,720.80/126,998.57 = 40,335.63/x
  3. Step 3: Cross multiply
    84,720.80x = 126,998.57 × 40,335.63
  4. Step 4: Simplify right side
    84,720.80x = 5,122,567,128.37
  5. Step 5: Solve for x
    x = 5,122,567,128.37/84,720.80
  6. Step 6: Final answer
    x = 60,464.11

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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.