Home / 54,756.24-82,121.84-15,316.16

Finding the Fourth Proportional to 54,756.24, 82,121.84 and 15,316.16

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Solution

The fourth proportional to 54,756.24, 82,121.84 and 15,316.16 is: 22,970.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,756.24 : 82,121.84 = 15,316.16 : x
  2. Step 2: Convert to fraction form
    54,756.24/82,121.84 = 15,316.16/x
  3. Step 3: Cross multiply
    54,756.24x = 82,121.84 × 15,316.16
  4. Step 4: Simplify right side
    54,756.24x = 1,257,791,240.93
  5. Step 5: Solve for x
    x = 1,257,791,240.93/54,756.24
  6. Step 6: Final answer
    x = 22,970.74

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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.