Home / 51,770.07-77,640.09-20,173.08

Finding the Fourth Proportional to 51,770.07, 77,640.09 and 20,173.08

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Solution

The fourth proportional to 51,770.07, 77,640.09 and 20,173.08 is: 30,253.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,770.07 : 77,640.09 = 20,173.08 : x
  2. Step 2: Convert to fraction form
    51,770.07/77,640.09 = 20,173.08/x
  3. Step 3: Cross multiply
    51,770.07x = 77,640.09 × 20,173.08
  4. Step 4: Simplify right side
    51,770.07x = 1,566,239,746.78
  5. Step 5: Solve for x
    x = 1,566,239,746.78/51,770.07
  6. Step 6: Final answer
    x = 30,253.77

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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.