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Finding the Fourth Proportional to 84,908.72, 127,330.08 and 28,733.84

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Solution

The fourth proportional to 84,908.72, 127,330.08 and 28,733.84 is: 43,089.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,908.72 : 127,330.08 = 28,733.84 : x
  2. Step 2: Convert to fraction form
    84,908.72/127,330.08 = 28,733.84/x
  3. Step 3: Cross multiply
    84,908.72x = 127,330.08 × 28,733.84
  4. Step 4: Simplify right side
    84,908.72x = 3,658,682,145.91
  5. Step 5: Solve for x
    x = 3,658,682,145.91/84,908.72
  6. Step 6: Final answer
    x = 43,089.59

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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.