Home / 51,776.15-77,680.53-18,495.47

Finding the Fourth Proportional to 51,776.15, 77,680.53 and 18,495.47

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Solution

The fourth proportional to 51,776.15, 77,680.53 and 18,495.47 is: 27,749.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,776.15 : 77,680.53 = 18,495.47 : x
  2. Step 2: Convert to fraction form
    51,776.15/77,680.53 = 18,495.47/x
  3. Step 3: Cross multiply
    51,776.15x = 77,680.53 × 18,495.47
  4. Step 4: Simplify right side
    51,776.15x = 1,436,738,106.40
  5. Step 5: Solve for x
    x = 1,436,738,106.40/51,776.15
  6. Step 6: Final answer
    x = 27,749.04

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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.