Home / 63,415.12-87,513.60-35,121.28

Finding the Fourth Proportional to 63,415.12, 87,513.60 and 35,121.28

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Solution

The fourth proportional to 63,415.12, 87,513.60 and 35,121.28 is: 48,467.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,415.12 : 87,513.60 = 35,121.28 : x
  2. Step 2: Convert to fraction form
    63,415.12/87,513.60 = 35,121.28/x
  3. Step 3: Cross multiply
    63,415.12x = 87,513.60 × 35,121.28
  4. Step 4: Simplify right side
    63,415.12x = 3,073,589,649.41
  5. Step 5: Solve for x
    x = 3,073,589,649.41/63,415.12
  6. Step 6: Final answer
    x = 48,467.77

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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.