Home / 85,286.93-127,946.79-26,123.11

Finding the Fourth Proportional to 85,286.93, 127,946.79 and 26,123.11

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Solution

The fourth proportional to 85,286.93, 127,946.79 and 26,123.11 is: 39,189.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,286.93 : 127,946.79 = 26,123.11 : x
  2. Step 2: Convert to fraction form
    85,286.93/127,946.79 = 26,123.11/x
  3. Step 3: Cross multiply
    85,286.93x = 127,946.79 × 26,123.11
  4. Step 4: Simplify right side
    85,286.93x = 3,342,367,749.45
  5. Step 5: Solve for x
    x = 3,342,367,749.45/85,286.93
  6. Step 6: Final answer
    x = 39,189.69

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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.