Home / 92,946.92-128,277.69-55,221.20

Finding the Fourth Proportional to 92,946.92, 128,277.69 and 55,221.20

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Solution

The fourth proportional to 92,946.92, 128,277.69 and 55,221.20 is: 76,211.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,946.92 : 128,277.69 = 55,221.20 : x
  2. Step 2: Convert to fraction form
    92,946.92/128,277.69 = 55,221.20/x
  3. Step 3: Cross multiply
    92,946.92x = 128,277.69 × 55,221.20
  4. Step 4: Simplify right side
    92,946.92x = 7,083,647,975.03
  5. Step 5: Solve for x
    x = 7,083,647,975.03/92,946.92
  6. Step 6: Final answer
    x = 76,211.76

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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.