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Finding the Fourth Proportional to 84,714.80, 127,047.90 and 25,536.20

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Solution

The fourth proportional to 84,714.80, 127,047.90 and 25,536.20 is: 38,296.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,714.80 : 127,047.90 = 25,536.20 : x
  2. Step 2: Convert to fraction form
    84,714.80/127,047.90 = 25,536.20/x
  3. Step 3: Cross multiply
    84,714.80x = 127,047.90 × 25,536.20
  4. Step 4: Simplify right side
    84,714.80x = 3,244,320,583.98
  5. Step 5: Solve for x
    x = 3,244,320,583.98/84,714.80
  6. Step 6: Final answer
    x = 38,296.98

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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.