Home / 45,009.36-67,507.11-15,420.42

Finding the Fourth Proportional to 45,009.36, 67,507.11 and 15,420.42

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Solution

The fourth proportional to 45,009.36, 67,507.11 and 15,420.42 is: 23,128.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,009.36 : 67,507.11 = 15,420.42 : x
  2. Step 2: Convert to fraction form
    45,009.36/67,507.11 = 15,420.42/x
  3. Step 3: Cross multiply
    45,009.36x = 67,507.11 × 15,420.42
  4. Step 4: Simplify right side
    45,009.36x = 1,040,987,989.19
  5. Step 5: Solve for x
    x = 1,040,987,989.19/45,009.36
  6. Step 6: Final answer
    x = 23,128.26

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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.