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Finding the Fourth Proportional to 65,759.46, 98,629.88 and 21,386.85

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Solution

The fourth proportional to 65,759.46, 98,629.88 and 21,386.85 is: 32,077.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,759.46 : 98,629.88 = 21,386.85 : x
  2. Step 2: Convert to fraction form
    65,759.46/98,629.88 = 21,386.85/x
  3. Step 3: Cross multiply
    65,759.46x = 98,629.88 × 21,386.85
  4. Step 4: Simplify right side
    65,759.46x = 2,109,382,342.14
  5. Step 5: Solve for x
    x = 2,109,382,342.14/65,759.46
  6. Step 6: Final answer
    x = 32,077.25

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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.