Home / 45,869.50-68,814.13-14,278.89

Finding the Fourth Proportional to 45,869.50, 68,814.13 and 14,278.89

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Solution

The fourth proportional to 45,869.50, 68,814.13 and 14,278.89 is: 21,421.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,869.50 : 68,814.13 = 14,278.89 : x
  2. Step 2: Convert to fraction form
    45,869.50/68,814.13 = 14,278.89/x
  3. Step 3: Cross multiply
    45,869.50x = 68,814.13 × 14,278.89
  4. Step 4: Simplify right side
    45,869.50x = 982,589,392.72
  5. Step 5: Solve for x
    x = 982,589,392.72/45,869.50
  6. Step 6: Final answer
    x = 21,421.41

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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.