Home / 51,956.72-77,928.60-20,792.24

Finding the Fourth Proportional to 51,956.72, 77,928.60 and 20,792.24

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Solution

The fourth proportional to 51,956.72, 77,928.60 and 20,792.24 is: 31,185.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,956.72 : 77,928.60 = 20,792.24 : x
  2. Step 2: Convert to fraction form
    51,956.72/77,928.60 = 20,792.24/x
  3. Step 3: Cross multiply
    51,956.72x = 77,928.60 × 20,792.24
  4. Step 4: Simplify right side
    51,956.72x = 1,620,310,154.06
  5. Step 5: Solve for x
    x = 1,620,310,154.06/51,956.72
  6. Step 6: Final answer
    x = 31,185.77

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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.