Home / 171,861.40-257,811.30-53,531.80

Finding the Fourth Proportional to 171,861.40, 257,811.30 and 53,531.80

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Solution

The fourth proportional to 171,861.40, 257,811.30 and 53,531.80 is: 80,303.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,861.40 : 257,811.30 = 53,531.80 : x
  2. Step 2: Convert to fraction form
    171,861.40/257,811.30 = 53,531.80/x
  3. Step 3: Cross multiply
    171,861.40x = 257,811.30 × 53,531.80
  4. Step 4: Simplify right side
    171,861.40x = 13,801,102,949.34
  5. Step 5: Solve for x
    x = 13,801,102,949.34/171,861.40
  6. Step 6: Final answer
    x = 80,303.68

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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.