Home / 70,620.50-97,456.38-38,790.02

Finding the Fourth Proportional to 70,620.50, 97,456.38 and 38,790.02

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Solution

The fourth proportional to 70,620.50, 97,456.38 and 38,790.02 is: 53,530.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,620.50 : 97,456.38 = 38,790.02 : x
  2. Step 2: Convert to fraction form
    70,620.50/97,456.38 = 38,790.02/x
  3. Step 3: Cross multiply
    70,620.50x = 97,456.38 × 38,790.02
  4. Step 4: Simplify right side
    70,620.50x = 3,780,334,929.33
  5. Step 5: Solve for x
    x = 3,780,334,929.33/70,620.50
  6. Step 6: Final answer
    x = 53,530.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.