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Finding the Fourth Proportional to 84,703.82, 127,052.09 and 28,540.22

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Solution

The fourth proportional to 84,703.82, 127,052.09 and 28,540.22 is: 42,809.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,703.82 : 127,052.09 = 28,540.22 : x
  2. Step 2: Convert to fraction form
    84,703.82/127,052.09 = 28,540.22/x
  3. Step 3: Cross multiply
    84,703.82x = 127,052.09 × 28,540.22
  4. Step 4: Simplify right side
    84,703.82x = 3,626,094,600.06
  5. Step 5: Solve for x
    x = 3,626,094,600.06/84,703.82
  6. Step 6: Final answer
    x = 42,809.10

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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.