Home / 51,845.55-71,558.55-31,719.21

Finding the Fourth Proportional to 51,845.55, 71,558.55 and 31,719.21

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Solution

The fourth proportional to 51,845.55, 71,558.55 and 31,719.21 is: 43,779.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,845.55 : 71,558.55 = 31,719.21 : x
  2. Step 2: Convert to fraction form
    51,845.55/71,558.55 = 31,719.21/x
  3. Step 3: Cross multiply
    51,845.55x = 71,558.55 × 31,719.21
  4. Step 4: Simplify right side
    51,845.55x = 2,269,780,674.75
  5. Step 5: Solve for x
    x = 2,269,780,674.75/51,845.55
  6. Step 6: Final answer
    x = 43,779.66

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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.