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Finding the Fourth Proportional to 68,160.69, 94,051.85 and 39,860.91

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Solution

The fourth proportional to 68,160.69, 94,051.85 and 39,860.91 is: 55,002.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,160.69 : 94,051.85 = 39,860.91 : x
  2. Step 2: Convert to fraction form
    68,160.69/94,051.85 = 39,860.91/x
  3. Step 3: Cross multiply
    68,160.69x = 94,051.85 × 39,860.91
  4. Step 4: Simplify right side
    68,160.69x = 3,748,992,128.88
  5. Step 5: Solve for x
    x = 3,748,992,128.88/68,160.69
  6. Step 6: Final answer
    x = 55,002.26

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1.5x scale

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.