Home / 65,138.04-97,714.14-20,754.36

Finding the Fourth Proportional to 65,138.04, 97,714.14 and 20,754.36

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Solution

The fourth proportional to 65,138.04, 97,714.14 and 20,754.36 is: 31,133.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,138.04 : 97,714.14 = 20,754.36 : x
  2. Step 2: Convert to fraction form
    65,138.04/97,714.14 = 20,754.36/x
  3. Step 3: Cross multiply
    65,138.04x = 97,714.14 × 20,754.36
  4. Step 4: Simplify right side
    65,138.04x = 2,027,994,438.65
  5. Step 5: Solve for x
    x = 2,027,994,438.65/65,138.04
  6. Step 6: Final answer
    x = 31,133.80

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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.