Home / 45,821.81-68,643.23-21,771.89

Finding the Fourth Proportional to 45,821.81, 68,643.23 and 21,771.89

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Solution

The fourth proportional to 45,821.81, 68,643.23 and 21,771.89 is: 32,615.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,821.81 : 68,643.23 = 21,771.89 : x
  2. Step 2: Convert to fraction form
    45,821.81/68,643.23 = 21,771.89/x
  3. Step 3: Cross multiply
    45,821.81x = 68,643.23 × 21,771.89
  4. Step 4: Simplify right side
    45,821.81x = 1,494,492,509.59
  5. Step 5: Solve for x
    x = 1,494,492,509.59/45,821.81
  6. Step 6: Final answer
    x = 32,615.31

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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.