Home / 79,014.30-118,521.45-19,851.90

Finding the Fourth Proportional to 79,014.30, 118,521.45 and 19,851.90

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Solution

The fourth proportional to 79,014.30, 118,521.45 and 19,851.90 is: 29,777.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,014.30 : 118,521.45 = 19,851.90 : x
  2. Step 2: Convert to fraction form
    79,014.30/118,521.45 = 19,851.90/x
  3. Step 3: Cross multiply
    79,014.30x = 118,521.45 × 19,851.90
  4. Step 4: Simplify right side
    79,014.30x = 2,352,875,973.26
  5. Step 5: Solve for x
    x = 2,352,875,973.26/79,014.30
  6. Step 6: Final answer
    x = 29,777.85

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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.