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Finding the Fourth Proportional to 74,939.60, 112,409.40 and 37,614.80

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Solution

The fourth proportional to 74,939.60, 112,409.40 and 37,614.80 is: 56,422.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,939.60 : 112,409.40 = 37,614.80 : x
  2. Step 2: Convert to fraction form
    74,939.60/112,409.40 = 37,614.80/x
  3. Step 3: Cross multiply
    74,939.60x = 112,409.40 × 37,614.80
  4. Step 4: Simplify right side
    74,939.60x = 4,228,257,099.12
  5. Step 5: Solve for x
    x = 4,228,257,099.12/74,939.60
  6. Step 6: Final answer
    x = 56,422.20

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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.