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Finding the Fourth Proportional to 68,146.40, 94,042.02 and 37,931.07

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Solution

The fourth proportional to 68,146.40, 94,042.02 and 37,931.07 is: 52,344.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,146.40 : 94,042.02 = 37,931.07 : x
  2. Step 2: Convert to fraction form
    68,146.40/94,042.02 = 37,931.07/x
  3. Step 3: Cross multiply
    68,146.40x = 94,042.02 × 37,931.07
  4. Step 4: Simplify right side
    68,146.40x = 3,567,114,585.80
  5. Step 5: Solve for x
    x = 3,567,114,585.80/68,146.40
  6. Step 6: Final answer
    x = 52,344.87

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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.