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Finding the Fourth Proportional to 79,184.76, 118,762.29 and 39,731.28

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Solution

The fourth proportional to 79,184.76, 118,762.29 and 39,731.28 is: 59,589.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,184.76 : 118,762.29 = 39,731.28 : x
  2. Step 2: Convert to fraction form
    79,184.76/118,762.29 = 39,731.28/x
  3. Step 3: Cross multiply
    79,184.76x = 118,762.29 × 39,731.28
  4. Step 4: Simplify right side
    79,184.76x = 4,718,577,797.43
  5. Step 5: Solve for x
    x = 4,718,577,797.43/79,184.76
  6. Step 6: Final answer
    x = 59,589.47

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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.