Home / 66,591.21-99,868.09-18,548.90

Finding the Fourth Proportional to 66,591.21, 99,868.09 and 18,548.90

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Solution

The fourth proportional to 66,591.21, 99,868.09 and 18,548.90 is: 27,818.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,591.21 : 99,868.09 = 18,548.90 : x
  2. Step 2: Convert to fraction form
    66,591.21/99,868.09 = 18,548.90/x
  3. Step 3: Cross multiply
    66,591.21x = 99,868.09 × 18,548.90
  4. Step 4: Simplify right side
    66,591.21x = 1,852,442,622.52
  5. Step 5: Solve for x
    x = 1,852,442,622.52/66,591.21
  6. Step 6: Final answer
    x = 27,818.13

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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.