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Finding the Fourth Proportional to 64,422.88, 96,643.53 and 20,054.12

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Solution

The fourth proportional to 64,422.88, 96,643.53 and 20,054.12 is: 30,084.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,422.88 : 96,643.53 = 20,054.12 : x
  2. Step 2: Convert to fraction form
    64,422.88/96,643.53 = 20,054.12/x
  3. Step 3: Cross multiply
    64,422.88x = 96,643.53 × 20,054.12
  4. Step 4: Simplify right side
    64,422.88x = 1,938,100,464.63
  5. Step 5: Solve for x
    x = 1,938,100,464.63/64,422.88
  6. Step 6: Final answer
    x = 30,084.04

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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.