Home / 45,036.45-67,564.32-13,449.00

Finding the Fourth Proportional to 45,036.45, 67,564.32 and 13,449.00

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Solution

The fourth proportional to 45,036.45, 67,564.32 and 13,449.00 is: 20,176.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,036.45 : 67,564.32 = 13,449.00 : x
  2. Step 2: Convert to fraction form
    45,036.45/67,564.32 = 13,449.00/x
  3. Step 3: Cross multiply
    45,036.45x = 67,564.32 × 13,449.00
  4. Step 4: Simplify right side
    45,036.45x = 908,672,235.88
  5. Step 5: Solve for x
    x = 908,672,235.88/45,036.45
  6. Step 6: Final answer
    x = 20,176.38

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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.