Home / 57,234.69-78,988.50-31,743.60

Finding the Fourth Proportional to 57,234.69, 78,988.50 and 31,743.60

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Solution

The fourth proportional to 57,234.69, 78,988.50 and 31,743.60 is: 43,808.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,234.69 : 78,988.50 = 31,743.60 : x
  2. Step 2: Convert to fraction form
    57,234.69/78,988.50 = 31,743.60/x
  3. Step 3: Cross multiply
    57,234.69x = 78,988.50 × 31,743.60
  4. Step 4: Simplify right side
    57,234.69x = 2,507,379,348.60
  5. Step 5: Solve for x
    x = 2,507,379,348.60/57,234.69
  6. Step 6: Final answer
    x = 43,808.73

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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.