Home / 43,123.50-64,685.25-11,958.75

Finding the Fourth Proportional to 43,123.50, 64,685.25 and 11,958.75

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Solution

The fourth proportional to 43,123.50, 64,685.25 and 11,958.75 is: 17,938.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,123.50 : 64,685.25 = 11,958.75 : x
  2. Step 2: Convert to fraction form
    43,123.50/64,685.25 = 11,958.75/x
  3. Step 3: Cross multiply
    43,123.50x = 64,685.25 × 11,958.75
  4. Step 4: Simplify right side
    43,123.50x = 773,554,733.44
  5. Step 5: Solve for x
    x = 773,554,733.44/43,123.50
  6. Step 6: Final answer
    x = 17,938.13

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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.