Home / 45,453.06-68,210.70-15,870.90

Finding the Fourth Proportional to 45,453.06, 68,210.70 and 15,870.90

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Solution

The fourth proportional to 45,453.06, 68,210.70 and 15,870.90 is: 23,817.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,453.06 : 68,210.70 = 15,870.90 : x
  2. Step 2: Convert to fraction form
    45,453.06/68,210.70 = 15,870.90/x
  3. Step 3: Cross multiply
    45,453.06x = 68,210.70 × 15,870.90
  4. Step 4: Simplify right side
    45,453.06x = 1,082,565,198.63
  5. Step 5: Solve for x
    x = 1,082,565,198.63/45,453.06
  6. Step 6: Final answer
    x = 23,817.21

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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.