Home / 51,857.75-77,812.02-18,580.38

Finding the Fourth Proportional to 51,857.75, 77,812.02 and 18,580.38

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Solution

The fourth proportional to 51,857.75, 77,812.02 and 18,580.38 is: 27,879.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,857.75 : 77,812.02 = 18,580.38 : x
  2. Step 2: Convert to fraction form
    51,857.75/77,812.02 = 18,580.38/x
  3. Step 3: Cross multiply
    51,857.75x = 77,812.02 × 18,580.38
  4. Step 4: Simplify right side
    51,857.75x = 1,445,776,900.17
  5. Step 5: Solve for x
    x = 1,445,776,900.17/51,857.75
  6. Step 6: Final answer
    x = 27,879.67

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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.