Home / 67,911.91-93,722.99-39,237.15

Finding the Fourth Proportional to 67,911.91, 93,722.99 and 39,237.15

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Solution

The fourth proportional to 67,911.91, 93,722.99 and 39,237.15 is: 54,149.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,911.91 : 93,722.99 = 39,237.15 : x
  2. Step 2: Convert to fraction form
    67,911.91/93,722.99 = 39,237.15/x
  3. Step 3: Cross multiply
    67,911.91x = 93,722.99 × 39,237.15
  4. Step 4: Simplify right side
    67,911.91x = 3,677,423,017.08
  5. Step 5: Solve for x
    x = 3,677,423,017.08/67,911.91
  6. Step 6: Final answer
    x = 54,149.90

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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.