Home / 51,178.56-76,778.28-21,596.40

Finding the Fourth Proportional to 51,178.56, 76,778.28 and 21,596.40

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Solution

The fourth proportional to 51,178.56, 76,778.28 and 21,596.40 is: 32,399.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,178.56 : 76,778.28 = 21,596.40 : x
  2. Step 2: Convert to fraction form
    51,178.56/76,778.28 = 21,596.40/x
  3. Step 3: Cross multiply
    51,178.56x = 76,778.28 × 21,596.40
  4. Step 4: Simplify right side
    51,178.56x = 1,658,134,446.19
  5. Step 5: Solve for x
    x = 1,658,134,446.19/51,178.56
  6. Step 6: Final answer
    x = 32,399.01

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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.