Home / 70,140.30-96,793.62-38,309.28

Finding the Fourth Proportional to 70,140.30, 96,793.62 and 38,309.28

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Solution

The fourth proportional to 70,140.30, 96,793.62 and 38,309.28 is: 52,866.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,140.30 : 96,793.62 = 38,309.28 : x
  2. Step 2: Convert to fraction form
    70,140.30/96,793.62 = 38,309.28/x
  3. Step 3: Cross multiply
    70,140.30x = 96,793.62 × 38,309.28
  4. Step 4: Simplify right side
    70,140.30x = 3,708,093,818.01
  5. Step 5: Solve for x
    x = 3,708,093,818.01/70,140.30
  6. Step 6: Final answer
    x = 52,866.81

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1.5x scale

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.