Home / 83,501.09-125,250.58-20,321.32

Finding the Fourth Proportional to 83,501.09, 125,250.58 and 20,321.32

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Solution

The fourth proportional to 83,501.09, 125,250.58 and 20,321.32 is: 30,481.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,501.09 : 125,250.58 = 20,321.32 : x
  2. Step 2: Convert to fraction form
    83,501.09/125,250.58 = 20,321.32/x
  3. Step 3: Cross multiply
    83,501.09x = 125,250.58 × 20,321.32
  4. Step 4: Simplify right side
    83,501.09x = 2,545,257,116.37
  5. Step 5: Solve for x
    x = 2,545,257,116.37/83,501.09
  6. Step 6: Final answer
    x = 30,481.72

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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.