Home / 51,187.43-76,728.53-19,590.08

Finding the Fourth Proportional to 51,187.43, 76,728.53 and 19,590.08

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Solution

The fourth proportional to 51,187.43, 76,728.53 and 19,590.08 is: 29,364.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,187.43 : 76,728.53 = 19,590.08 : x
  2. Step 2: Convert to fraction form
    51,187.43/76,728.53 = 19,590.08/x
  3. Step 3: Cross multiply
    51,187.43x = 76,728.53 × 19,590.08
  4. Step 4: Simplify right side
    51,187.43x = 1,503,117,706.31
  5. Step 5: Solve for x
    x = 1,503,117,706.31/51,187.43
  6. Step 6: Final answer
    x = 29,364.98

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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.