Home / 51,120.06-76,690.47-21,537.89

Finding the Fourth Proportional to 51,120.06, 76,690.47 and 21,537.89

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Solution

The fourth proportional to 51,120.06, 76,690.47 and 21,537.89 is: 32,311.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,120.06 : 76,690.47 = 21,537.89 : x
  2. Step 2: Convert to fraction form
    51,120.06/76,690.47 = 21,537.89/x
  3. Step 3: Cross multiply
    51,120.06x = 76,690.47 × 21,537.89
  4. Step 4: Simplify right side
    51,120.06x = 1,651,750,968.11
  5. Step 5: Solve for x
    x = 1,651,750,968.11/51,120.06
  6. Step 6: Final answer
    x = 32,311.21

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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.