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Finding the Fourth Proportional to 51,060.40, 76,439.40 and 37,970.80

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Solution

The fourth proportional to 51,060.40, 76,439.40 and 37,970.80 is: 56,843.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,060.40 : 76,439.40 = 37,970.80 : x
  2. Step 2: Convert to fraction form
    51,060.40/76,439.40 = 37,970.80/x
  3. Step 3: Cross multiply
    51,060.40x = 76,439.40 × 37,970.80
  4. Step 4: Simplify right side
    51,060.40x = 2,902,465,169.52
  5. Step 5: Solve for x
    x = 2,902,465,169.52/51,060.40
  6. Step 6: Final answer
    x = 56,843.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.