Home / 52,431.93-78,647.72-21,267.09

Finding the Fourth Proportional to 52,431.93, 78,647.72 and 21,267.09

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Solution

The fourth proportional to 52,431.93, 78,647.72 and 21,267.09 is: 31,900.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,431.93 : 78,647.72 = 21,267.09 : x
  2. Step 2: Convert to fraction form
    52,431.93/78,647.72 = 21,267.09/x
  3. Step 3: Cross multiply
    52,431.93x = 78,647.72 × 21,267.09
  4. Step 4: Simplify right side
    52,431.93x = 1,672,608,033.20
  5. Step 5: Solve for x
    x = 1,672,608,033.20/52,431.93
  6. Step 6: Final answer
    x = 31,900.56

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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.