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Finding the Fourth Proportional to 64,604.98, 96,907.47 and 20,235.20

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Solution

The fourth proportional to 64,604.98, 96,907.47 and 20,235.20 is: 30,352.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,604.98 : 96,907.47 = 20,235.20 : x
  2. Step 2: Convert to fraction form
    64,604.98/96,907.47 = 20,235.20/x
  3. Step 3: Cross multiply
    64,604.98x = 96,907.47 × 20,235.20
  4. Step 4: Simplify right side
    64,604.98x = 1,960,942,036.94
  5. Step 5: Solve for x
    x = 1,960,942,036.94/64,604.98
  6. Step 6: Final answer
    x = 30,352.80

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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.