Home / 73,271.40-109,907.10-66,382.35

Finding the Fourth Proportional to 73,271.40, 109,907.10 and 66,382.35

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Solution

The fourth proportional to 73,271.40, 109,907.10 and 66,382.35 is: 99,573.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,271.40 : 109,907.10 = 66,382.35 : x
  2. Step 2: Convert to fraction form
    73,271.40/109,907.10 = 66,382.35/x
  3. Step 3: Cross multiply
    73,271.40x = 109,907.10 × 66,382.35
  4. Step 4: Simplify right side
    73,271.40x = 7,295,891,579.69
  5. Step 5: Solve for x
    x = 7,295,891,579.69/73,271.40
  6. Step 6: Final answer
    x = 99,573.53

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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.