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Finding the Fourth Proportional to 64,215.36, 88,620.64 and 35,919.36

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Solution

The fourth proportional to 64,215.36, 88,620.64 and 35,919.36 is: 49,570.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,215.36 : 88,620.64 = 35,919.36 : x
  2. Step 2: Convert to fraction form
    64,215.36/88,620.64 = 35,919.36/x
  3. Step 3: Cross multiply
    64,215.36x = 88,620.64 × 35,919.36
  4. Step 4: Simplify right side
    64,215.36x = 3,183,196,671.59
  5. Step 5: Solve for x
    x = 3,183,196,671.59/64,215.36
  6. Step 6: Final answer
    x = 49,570.64

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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.