Home / 65,785.03-98,678.46-21,412.01

Finding the Fourth Proportional to 65,785.03, 98,678.46 and 21,412.01

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Solution

The fourth proportional to 65,785.03, 98,678.46 and 21,412.01 is: 32,118.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,785.03 : 98,678.46 = 21,412.01 : x
  2. Step 2: Convert to fraction form
    65,785.03/98,678.46 = 21,412.01/x
  3. Step 3: Cross multiply
    65,785.03x = 98,678.46 × 21,412.01
  4. Step 4: Simplify right side
    65,785.03x = 2,112,904,172.30
  5. Step 5: Solve for x
    x = 2,112,904,172.30/65,785.03
  6. Step 6: Final answer
    x = 32,118.32

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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.