Home / 54,718.40-82,077.60-47,806.40

Finding the Fourth Proportional to 54,718.40, 82,077.60 and 47,806.40

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Solution

The fourth proportional to 54,718.40, 82,077.60 and 47,806.40 is: 71,709.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,718.40 : 82,077.60 = 47,806.40 : x
  2. Step 2: Convert to fraction form
    54,718.40/82,077.60 = 47,806.40/x
  3. Step 3: Cross multiply
    54,718.40x = 82,077.60 × 47,806.40
  4. Step 4: Simplify right side
    54,718.40x = 3,923,834,576.64
  5. Step 5: Solve for x
    x = 3,923,834,576.64/54,718.40
  6. Step 6: Final answer
    x = 71,709.60

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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.