Home / 67,855.39-93,638.63-39,174.08

Finding the Fourth Proportional to 67,855.39, 93,638.63 and 39,174.08

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Solution

The fourth proportional to 67,855.39, 93,638.63 and 39,174.08 is: 54,059.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,855.39 : 93,638.63 = 39,174.08 : x
  2. Step 2: Convert to fraction form
    67,855.39/93,638.63 = 39,174.08/x
  3. Step 3: Cross multiply
    67,855.39x = 93,638.63 × 39,174.08
  4. Step 4: Simplify right side
    67,855.39x = 3,668,207,220.94
  5. Step 5: Solve for x
    x = 3,668,207,220.94/67,855.39
  6. Step 6: Final answer
    x = 54,059.19

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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.