Home / 84,131.74-126,160.66-31,504.32

Finding the Fourth Proportional to 84,131.74, 126,160.66 and 31,504.32

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Solution

The fourth proportional to 84,131.74, 126,160.66 and 31,504.32 is: 47,242.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,131.74 : 126,160.66 = 31,504.32 : x
  2. Step 2: Convert to fraction form
    84,131.74/126,160.66 = 31,504.32/x
  3. Step 3: Cross multiply
    84,131.74x = 126,160.66 × 31,504.32
  4. Step 4: Simplify right side
    84,131.74x = 3,974,605,804.05
  5. Step 5: Solve for x
    x = 3,974,605,804.05/84,131.74
  6. Step 6: Final answer
    x = 47,242.64

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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.