Home / 66,891.79-100,337.85-16,971.80

Finding the Fourth Proportional to 66,891.79, 100,337.85 and 16,971.80

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Solution

The fourth proportional to 66,891.79, 100,337.85 and 16,971.80 is: 25,457.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,891.79 : 100,337.85 = 16,971.80 : x
  2. Step 2: Convert to fraction form
    66,891.79/100,337.85 = 16,971.80/x
  3. Step 3: Cross multiply
    66,891.79x = 100,337.85 × 16,971.80
  4. Step 4: Simplify right side
    66,891.79x = 1,702,914,291.41
  5. Step 5: Solve for x
    x = 1,702,914,291.41/66,891.79
  6. Step 6: Final answer
    x = 25,457.75

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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.