Home / 84,272.40-126,427.44-31,682.32

Finding the Fourth Proportional to 84,272.40, 126,427.44 and 31,682.32

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Solution

The fourth proportional to 84,272.40, 126,427.44 and 31,682.32 is: 47,530.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,272.40 : 126,427.44 = 31,682.32 : x
  2. Step 2: Convert to fraction form
    84,272.40/126,427.44 = 31,682.32/x
  3. Step 3: Cross multiply
    84,272.40x = 126,427.44 × 31,682.32
  4. Step 4: Simplify right side
    84,272.40x = 4,005,514,610.86
  5. Step 5: Solve for x
    x = 4,005,514,610.86/84,272.40
  6. Step 6: Final answer
    x = 47,530.56

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1.5x scale

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.