Home / 79,046.16-118,560.50-19,881.85

Finding the Fourth Proportional to 79,046.16, 118,560.50 and 19,881.85

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Solution

The fourth proportional to 79,046.16, 118,560.50 and 19,881.85 is: 29,820.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,046.16 : 118,560.50 = 19,881.85 : x
  2. Step 2: Convert to fraction form
    79,046.16/118,560.50 = 19,881.85/x
  3. Step 3: Cross multiply
    79,046.16x = 118,560.50 × 19,881.85
  4. Step 4: Simplify right side
    79,046.16x = 2,357,202,076.93
  5. Step 5: Solve for x
    x = 2,357,202,076.93/79,046.16
  6. Step 6: Final answer
    x = 29,820.58

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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.