Home / 43,069.56-64,605.12-11,905.56

Finding the Fourth Proportional to 43,069.56, 64,605.12 and 11,905.56

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Solution

The fourth proportional to 43,069.56, 64,605.12 and 11,905.56 is: 17,858.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,069.56 : 64,605.12 = 11,905.56 : x
  2. Step 2: Convert to fraction form
    43,069.56/64,605.12 = 11,905.56/x
  3. Step 3: Cross multiply
    43,069.56x = 64,605.12 × 11,905.56
  4. Step 4: Simplify right side
    43,069.56x = 769,160,132.47
  5. Step 5: Solve for x
    x = 769,160,132.47/43,069.56
  6. Step 6: Final answer
    x = 17,858.56

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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.