Home / 67,828.32-93,609-39,533.40

Finding the Fourth Proportional to 67,828.32, 93,609 and 39,533.40

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Solution

The fourth proportional to 67,828.32, 93,609 and 39,533.40 is: 54,559.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,828.32 : 93,609 = 39,533.40 : x
  2. Step 2: Convert to fraction form
    67,828.32/93,609 = 39,533.40/x
  3. Step 3: Cross multiply
    67,828.32x = 93,609 × 39,533.40
  4. Step 4: Simplify right side
    67,828.32x = 3,700,682,040.60
  5. Step 5: Solve for x
    x = 3,700,682,040.60/67,828.32
  6. Step 6: Final answer
    x = 54,559.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.