Home / 79,020.13-118,521.06-19,851.30

Finding the Fourth Proportional to 79,020.13, 118,521.06 and 19,851.30

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Solution

The fourth proportional to 79,020.13, 118,521.06 and 19,851.30 is: 29,774.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,020.13 : 118,521.06 = 19,851.30 : x
  2. Step 2: Convert to fraction form
    79,020.13/118,521.06 = 19,851.30/x
  3. Step 3: Cross multiply
    79,020.13x = 118,521.06 × 19,851.30
  4. Step 4: Simplify right side
    79,020.13x = 2,352,797,118.38
  5. Step 5: Solve for x
    x = 2,352,797,118.38/79,020.13
  6. Step 6: Final answer
    x = 29,774.66

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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.