Home / 34,144.40-51,216.60-31,379.60

Finding the Fourth Proportional to 34,144.40, 51,216.60 and 31,379.60

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Solution

The fourth proportional to 34,144.40, 51,216.60 and 31,379.60 is: 47,069.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,144.40 : 51,216.60 = 31,379.60 : x
  2. Step 2: Convert to fraction form
    34,144.40/51,216.60 = 31,379.60/x
  3. Step 3: Cross multiply
    34,144.40x = 51,216.60 × 31,379.60
  4. Step 4: Simplify right side
    34,144.40x = 1,607,156,421.36
  5. Step 5: Solve for x
    x = 1,607,156,421.36/34,144.40
  6. Step 6: Final answer
    x = 47,069.40

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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.