Home / 63,688.09-87,889.62-35,393.78

Finding the Fourth Proportional to 63,688.09, 87,889.62 and 35,393.78

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Solution

The fourth proportional to 63,688.09, 87,889.62 and 35,393.78 is: 48,843.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,688.09 : 87,889.62 = 35,393.78 : x
  2. Step 2: Convert to fraction form
    63,688.09/87,889.62 = 35,393.78/x
  3. Step 3: Cross multiply
    63,688.09x = 87,889.62 × 35,393.78
  4. Step 4: Simplify right side
    63,688.09x = 3,110,745,874.56
  5. Step 5: Solve for x
    x = 3,110,745,874.56/63,688.09
  6. Step 6: Final answer
    x = 48,843.45

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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.