Home / 53,113.21-79,642.35-15,668.51

Finding the Fourth Proportional to 53,113.21, 79,642.35 and 15,668.51

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Solution

The fourth proportional to 53,113.21, 79,642.35 and 15,668.51 is: 23,494.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,113.21 : 79,642.35 = 15,668.51 : x
  2. Step 2: Convert to fraction form
    53,113.21/79,642.35 = 15,668.51/x
  3. Step 3: Cross multiply
    53,113.21x = 79,642.35 × 15,668.51
  4. Step 4: Simplify right side
    53,113.21x = 1,247,876,559.19
  5. Step 5: Solve for x
    x = 1,247,876,559.19/53,113.21
  6. Step 6: Final answer
    x = 23,494.66

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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.