Home / 45,036.88-67,564.98-13,449.43

Finding the Fourth Proportional to 45,036.88, 67,564.98 and 13,449.43

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Solution

The fourth proportional to 45,036.88, 67,564.98 and 13,449.43 is: 20,177.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,036.88 : 67,564.98 = 13,449.43 : x
  2. Step 2: Convert to fraction form
    45,036.88/67,564.98 = 13,449.43/x
  3. Step 3: Cross multiply
    45,036.88x = 67,564.98 × 13,449.43
  4. Step 4: Simplify right side
    45,036.88x = 908,710,401.71
  5. Step 5: Solve for x
    x = 908,710,401.71/45,036.88
  6. Step 6: Final answer
    x = 20,177.03

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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.