Home / 63,639.80-87,782.58-39,099.86

Finding the Fourth Proportional to 63,639.80, 87,782.58 and 39,099.86

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Solution

The fourth proportional to 63,639.80, 87,782.58 and 39,099.86 is: 53,933.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,639.80 : 87,782.58 = 39,099.86 : x
  2. Step 2: Convert to fraction form
    63,639.80/87,782.58 = 39,099.86/x
  3. Step 3: Cross multiply
    63,639.80x = 87,782.58 × 39,099.86
  4. Step 4: Simplify right side
    63,639.80x = 3,432,286,588.44
  5. Step 5: Solve for x
    x = 3,432,286,588.44/63,639.80
  6. Step 6: Final answer
    x = 53,933.02

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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.