Home / 55,644.21-76,744.34-48,915.57

Finding the Fourth Proportional to 55,644.21, 76,744.34 and 48,915.57

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Solution

The fourth proportional to 55,644.21, 76,744.34 and 48,915.57 is: 67,464.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,644.21 : 76,744.34 = 48,915.57 : x
  2. Step 2: Convert to fraction form
    55,644.21/76,744.34 = 48,915.57/x
  3. Step 3: Cross multiply
    55,644.21x = 76,744.34 × 48,915.57
  4. Step 4: Simplify right side
    55,644.21x = 3,753,992,890.80
  5. Step 5: Solve for x
    x = 3,753,992,890.80/55,644.21
  6. Step 6: Final answer
    x = 67,464.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.