Home / 51,357.57-77,036.36-13,917.65

Finding the Fourth Proportional to 51,357.57, 77,036.36 and 13,917.65

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Solution

The fourth proportional to 51,357.57, 77,036.36 and 13,917.65 is: 20,876.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,357.57 : 77,036.36 = 13,917.65 : x
  2. Step 2: Convert to fraction form
    51,357.57/77,036.36 = 13,917.65/x
  3. Step 3: Cross multiply
    51,357.57x = 77,036.36 × 13,917.65
  4. Step 4: Simplify right side
    51,357.57x = 1,072,164,719.27
  5. Step 5: Solve for x
    x = 1,072,164,719.27/51,357.57
  6. Step 6: Final answer
    x = 20,876.47

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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.