Home / 51,618.72-77,418.83-13,668.24

Finding the Fourth Proportional to 51,618.72, 77,418.83 and 13,668.24

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Solution

The fourth proportional to 51,618.72, 77,418.83 and 13,668.24 is: 20,499.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,618.72 : 77,418.83 = 13,668.24 : x
  2. Step 2: Convert to fraction form
    51,618.72/77,418.83 = 13,668.24/x
  3. Step 3: Cross multiply
    51,618.72x = 77,418.83 × 13,668.24
  4. Step 4: Simplify right side
    51,618.72x = 1,058,178,973.92
  5. Step 5: Solve for x
    x = 1,058,178,973.92/51,618.72
  6. Step 6: Final answer
    x = 20,499.91

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1.5x scale

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.