Home / 51,619.72-77,420.33-13,669.24

Finding the Fourth Proportional to 51,619.72, 77,420.33 and 13,669.24

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Solution

The fourth proportional to 51,619.72, 77,420.33 and 13,669.24 is: 20,501.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,619.72 : 77,420.33 = 13,669.24 : x
  2. Step 2: Convert to fraction form
    51,619.72/77,420.33 = 13,669.24/x
  3. Step 3: Cross multiply
    51,619.72x = 77,420.33 × 13,669.24
  4. Step 4: Simplify right side
    51,619.72x = 1,058,277,071.65
  5. Step 5: Solve for x
    x = 1,058,277,071.65/51,619.72
  6. Step 6: Final answer
    x = 20,501.41

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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.