Home / 79,130.06-118,704.29-31,761.62

Finding the Fourth Proportional to 79,130.06, 118,704.29 and 31,761.62

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Solution

The fourth proportional to 79,130.06, 118,704.29 and 31,761.62 is: 47,646.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,130.06 : 118,704.29 = 31,761.62 : x
  2. Step 2: Convert to fraction form
    79,130.06/118,704.29 = 31,761.62/x
  3. Step 3: Cross multiply
    79,130.06x = 118,704.29 × 31,761.62
  4. Step 4: Simplify right side
    79,130.06x = 3,770,240,244.16
  5. Step 5: Solve for x
    x = 3,770,240,244.16/79,130.06
  6. Step 6: Final answer
    x = 47,646.12

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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.