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Finding the Fourth Proportional to 79,203, 118,656.18 and 39,713.88

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Solution

The fourth proportional to 79,203, 118,656.18 and 39,713.88 is: 59,496.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,203 : 118,656.18 = 39,713.88 : x
  2. Step 2: Convert to fraction form
    79,203/118,656.18 = 39,713.88/x
  3. Step 3: Cross multiply
    79,203x = 118,656.18 × 39,713.88
  4. Step 4: Simplify right side
    79,203x = 4,712,297,293.78
  5. Step 5: Solve for x
    x = 4,712,297,293.78/79,203
  6. Step 6: Final answer
    x = 59,496.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.