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Finding the Fourth Proportional to 45,804.80, 68,710.40 and 18,099.20

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Solution

The fourth proportional to 45,804.80, 68,710.40 and 18,099.20 is: 27,150.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,804.80 : 68,710.40 = 18,099.20 : x
  2. Step 2: Convert to fraction form
    45,804.80/68,710.40 = 18,099.20/x
  3. Step 3: Cross multiply
    45,804.80x = 68,710.40 × 18,099.20
  4. Step 4: Simplify right side
    45,804.80x = 1,243,603,271.68
  5. Step 5: Solve for x
    x = 1,243,603,271.68/45,804.80
  6. Step 6: Final answer
    x = 27,150.06

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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.