Home / 84,305.48-126,360.94-31,681.32

Finding the Fourth Proportional to 84,305.48, 126,360.94 and 31,681.32

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Solution

The fourth proportional to 84,305.48, 126,360.94 and 31,681.32 is: 47,485.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,305.48 : 126,360.94 = 31,681.32 : x
  2. Step 2: Convert to fraction form
    84,305.48/126,360.94 = 31,681.32/x
  3. Step 3: Cross multiply
    84,305.48x = 126,360.94 × 31,681.32
  4. Step 4: Simplify right side
    84,305.48x = 4,003,281,375.64
  5. Step 5: Solve for x
    x = 4,003,281,375.64/84,305.48
  6. Step 6: Final answer
    x = 47,485.42

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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.