Home / 53,126.16-79,698-19,857.84

Finding the Fourth Proportional to 53,126.16, 79,698 and 19,857.84

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Solution

The fourth proportional to 53,126.16, 79,698 and 19,857.84 is: 29,790.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,126.16 : 79,698 = 19,857.84 : x
  2. Step 2: Convert to fraction form
    53,126.16/79,698 = 19,857.84/x
  3. Step 3: Cross multiply
    53,126.16x = 79,698 × 19,857.84
  4. Step 4: Simplify right side
    53,126.16x = 1,582,630,132.32
  5. Step 5: Solve for x
    x = 1,582,630,132.32/53,126.16
  6. Step 6: Final answer
    x = 29,790.03

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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.