Home / 84,388.15-126,594.51-31,105.63

Finding the Fourth Proportional to 84,388.15, 126,594.51 and 31,105.63

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Solution

The fourth proportional to 84,388.15, 126,594.51 and 31,105.63 is: 46,662.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,388.15 : 126,594.51 = 31,105.63 : x
  2. Step 2: Convert to fraction form
    84,388.15/126,594.51 = 31,105.63/x
  3. Step 3: Cross multiply
    84,388.15x = 126,594.51 × 31,105.63
  4. Step 4: Simplify right side
    84,388.15x = 3,937,801,988.09
  5. Step 5: Solve for x
    x = 3,937,801,988.09/84,388.15
  6. Step 6: Final answer
    x = 46,662.97

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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.