Home / 84,467.57-126,729.50-28,313.24

Finding the Fourth Proportional to 84,467.57, 126,729.50 and 28,313.24

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Solution

The fourth proportional to 84,467.57, 126,729.50 and 28,313.24 is: 42,479.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,467.57 : 126,729.50 = 28,313.24 : x
  2. Step 2: Convert to fraction form
    84,467.57/126,729.50 = 28,313.24/x
  3. Step 3: Cross multiply
    84,467.57x = 126,729.50 × 28,313.24
  4. Step 4: Simplify right side
    84,467.57x = 3,588,121,973.37
  5. Step 5: Solve for x
    x = 3,588,121,973.37/84,467.57
  6. Step 6: Final answer
    x = 42,479.29

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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.