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Finding the Fourth Proportional to 67,285, 92,853.30 and 37,478.92

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Solution

The fourth proportional to 67,285, 92,853.30 and 37,478.92 is: 51,720.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,285 : 92,853.30 = 37,478.92 : x
  2. Step 2: Convert to fraction form
    67,285/92,853.30 = 37,478.92/x
  3. Step 3: Cross multiply
    67,285x = 92,853.30 × 37,478.92
  4. Step 4: Simplify right side
    67,285x = 3,480,041,402.44
  5. Step 5: Solve for x
    x = 3,480,041,402.44/67,285
  6. Step 6: Final answer
    x = 51,720.91

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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.