Home / 43,188.08-64,791.34-15,109.05

Finding the Fourth Proportional to 43,188.08, 64,791.34 and 15,109.05

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Solution

The fourth proportional to 43,188.08, 64,791.34 and 15,109.05 is: 22,666.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,188.08 : 64,791.34 = 15,109.05 : x
  2. Step 2: Convert to fraction form
    43,188.08/64,791.34 = 15,109.05/x
  3. Step 3: Cross multiply
    43,188.08x = 64,791.34 × 15,109.05
  4. Step 4: Simplify right side
    43,188.08x = 978,935,521.36
  5. Step 5: Solve for x
    x = 978,935,521.36/43,188.08
  6. Step 6: Final answer
    x = 22,666.80

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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.