Home / 57,521.16-86,280.88-18,080.64

Finding the Fourth Proportional to 57,521.16, 86,280.88 and 18,080.64

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Solution

The fourth proportional to 57,521.16, 86,280.88 and 18,080.64 is: 27,120.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,521.16 : 86,280.88 = 18,080.64 : x
  2. Step 2: Convert to fraction form
    57,521.16/86,280.88 = 18,080.64/x
  3. Step 3: Cross multiply
    57,521.16x = 86,280.88 × 18,080.64
  4. Step 4: Simplify right side
    57,521.16x = 1,560,013,530.16
  5. Step 5: Solve for x
    x = 1,560,013,530.16/57,521.16
  6. Step 6: Final answer
    x = 27,120.69

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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.