Home / 84,263.13-126,407.66-31,676.31

Finding the Fourth Proportional to 84,263.13, 126,407.66 and 31,676.31

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Solution

The fourth proportional to 84,263.13, 126,407.66 and 31,676.31 is: 47,519.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,263.13 : 126,407.66 = 31,676.31 : x
  2. Step 2: Convert to fraction form
    84,263.13/126,407.66 = 31,676.31/x
  3. Step 3: Cross multiply
    84,263.13x = 126,407.66 × 31,676.31
  4. Step 4: Simplify right side
    84,263.13x = 4,004,128,066.15
  5. Step 5: Solve for x
    x = 4,004,128,066.15/84,263.13
  6. Step 6: Final answer
    x = 47,519.34

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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.