Home / 84,238.36-126,320.70-31,610.92

Finding the Fourth Proportional to 84,238.36, 126,320.70 and 31,610.92

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Solution

The fourth proportional to 84,238.36, 126,320.70 and 31,610.92 is: 47,402.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,238.36 : 126,320.70 = 31,610.92 : x
  2. Step 2: Convert to fraction form
    84,238.36/126,320.70 = 31,610.92/x
  3. Step 3: Cross multiply
    84,238.36x = 126,320.70 × 31,610.92
  4. Step 4: Simplify right side
    84,238.36x = 3,993,113,542.04
  5. Step 5: Solve for x
    x = 3,993,113,542.04/84,238.36
  6. Step 6: Final answer
    x = 47,402.56

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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.