Home / 70,039.20-96,650.28-39,820.32

Finding the Fourth Proportional to 70,039.20, 96,650.28 and 39,820.32

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Solution

The fourth proportional to 70,039.20, 96,650.28 and 39,820.32 is: 54,949.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,039.20 : 96,650.28 = 39,820.32 : x
  2. Step 2: Convert to fraction form
    70,039.20/96,650.28 = 39,820.32/x
  3. Step 3: Cross multiply
    70,039.20x = 96,650.28 × 39,820.32
  4. Step 4: Simplify right side
    70,039.20x = 3,848,645,077.69
  5. Step 5: Solve for x
    x = 3,848,645,077.69/70,039.20
  6. Step 6: Final answer
    x = 54,949.87

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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.