Home / 45,378.72-68,075.10-14,211

Finding the Fourth Proportional to 45,378.72, 68,075.10 and 14,211

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Solution

The fourth proportional to 45,378.72, 68,075.10 and 14,211 is: 21,318.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,378.72 : 68,075.10 = 14,211 : x
  2. Step 2: Convert to fraction form
    45,378.72/68,075.10 = 14,211/x
  3. Step 3: Cross multiply
    45,378.72x = 68,075.10 × 14,211
  4. Step 4: Simplify right side
    45,378.72x = 967,415,246.10
  5. Step 5: Solve for x
    x = 967,415,246.10/45,378.72
  6. Step 6: Final answer
    x = 21,318.70

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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.