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Finding the Fourth Proportional to 68,176.96, 94,053.92 and 39,870.16

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Solution

The fourth proportional to 68,176.96, 94,053.92 and 39,870.16 is: 55,003.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,176.96 : 94,053.92 = 39,870.16 : x
  2. Step 2: Convert to fraction form
    68,176.96/94,053.92 = 39,870.16/x
  3. Step 3: Cross multiply
    68,176.96x = 94,053.92 × 39,870.16
  4. Step 4: Simplify right side
    68,176.96x = 3,749,944,839.03
  5. Step 5: Solve for x
    x = 3,749,944,839.03/68,176.96
  6. Step 6: Final answer
    x = 55,003.11

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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.