Home / 53,161.77-79,742.97-13,719.23

Finding the Fourth Proportional to 53,161.77, 79,742.97 and 13,719.23

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Solution

The fourth proportional to 53,161.77, 79,742.97 and 13,719.23 is: 20,578.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,161.77 : 79,742.97 = 13,719.23 : x
  2. Step 2: Convert to fraction form
    53,161.77/79,742.97 = 13,719.23/x
  3. Step 3: Cross multiply
    53,161.77x = 79,742.97 × 13,719.23
  4. Step 4: Simplify right side
    53,161.77x = 1,094,011,747.60
  5. Step 5: Solve for x
    x = 1,094,011,747.60/53,161.77
  6. Step 6: Final answer
    x = 20,578.92

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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.