Home / 53,276.21-79,930.10-17,742.11

Finding the Fourth Proportional to 53,276.21, 79,930.10 and 17,742.11

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Solution

The fourth proportional to 53,276.21, 79,930.10 and 17,742.11 is: 26,618.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,276.21 : 79,930.10 = 17,742.11 : x
  2. Step 2: Convert to fraction form
    53,276.21/79,930.10 = 17,742.11/x
  3. Step 3: Cross multiply
    53,276.21x = 79,930.10 × 17,742.11
  4. Step 4: Simplify right side
    53,276.21x = 1,418,128,870.69
  5. Step 5: Solve for x
    x = 1,418,128,870.69/53,276.21
  6. Step 6: Final answer
    x = 26,618.43

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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.