Home / 67,484.78-93,140.38-39,206.86

Finding the Fourth Proportional to 67,484.78, 93,140.38 and 39,206.86

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Solution

The fourth proportional to 67,484.78, 93,140.38 and 39,206.86 is: 54,112.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,484.78 : 93,140.38 = 39,206.86 : x
  2. Step 2: Convert to fraction form
    67,484.78/93,140.38 = 39,206.86/x
  3. Step 3: Cross multiply
    67,484.78x = 93,140.38 × 39,206.86
  4. Step 4: Simplify right side
    67,484.78x = 3,651,741,839.01
  5. Step 5: Solve for x
    x = 3,651,741,839.01/67,484.78
  6. Step 6: Final answer
    x = 54,112.08

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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.