Home / 53,621.42-80,421.57-18,079.28

Finding the Fourth Proportional to 53,621.42, 80,421.57 and 18,079.28

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Solution

The fourth proportional to 53,621.42, 80,421.57 and 18,079.28 is: 27,115.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,621.42 : 80,421.57 = 18,079.28 : x
  2. Step 2: Convert to fraction form
    53,621.42/80,421.57 = 18,079.28/x
  3. Step 3: Cross multiply
    53,621.42x = 80,421.57 × 18,079.28
  4. Step 4: Simplify right side
    53,621.42x = 1,453,964,082.07
  5. Step 5: Solve for x
    x = 1,453,964,082.07/53,621.42
  6. Step 6: Final answer
    x = 27,115.36

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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.