Home / 65,785.21-98,654.52-21,403.69

Finding the Fourth Proportional to 65,785.21, 98,654.52 and 21,403.69

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Solution

The fourth proportional to 65,785.21, 98,654.52 and 21,403.69 is: 32,097.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,785.21 : 98,654.52 = 21,403.69 : x
  2. Step 2: Convert to fraction form
    65,785.21/98,654.52 = 21,403.69/x
  3. Step 3: Cross multiply
    65,785.21x = 98,654.52 × 21,403.69
  4. Step 4: Simplify right side
    65,785.21x = 2,111,570,763.18
  5. Step 5: Solve for x
    x = 2,111,570,763.18/65,785.21
  6. Step 6: Final answer
    x = 32,097.96

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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.