Home / 63,124.21-87,155.45-39,261.61

Finding the Fourth Proportional to 63,124.21, 87,155.45 and 39,261.61

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Solution

The fourth proportional to 63,124.21, 87,155.45 and 39,261.61 is: 54,208.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,124.21 : 87,155.45 = 39,261.61 : x
  2. Step 2: Convert to fraction form
    63,124.21/87,155.45 = 39,261.61/x
  3. Step 3: Cross multiply
    63,124.21x = 87,155.45 × 39,261.61
  4. Step 4: Simplify right side
    63,124.21x = 3,421,863,090.97
  5. Step 5: Solve for x
    x = 3,421,863,090.97/63,124.21
  6. Step 6: Final answer
    x = 54,208.41

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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.