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Finding the Fourth Proportional to 65,988.75, 98,999.63 and 19,241.63

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Solution

The fourth proportional to 65,988.75, 98,999.63 and 19,241.63 is: 28,867.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,988.75 : 98,999.63 = 19,241.63 : x
  2. Step 2: Convert to fraction form
    65,988.75/98,999.63 = 19,241.63/x
  3. Step 3: Cross multiply
    65,988.75x = 98,999.63 × 19,241.63
  4. Step 4: Simplify right side
    65,988.75x = 1,904,913,659.39
  5. Step 5: Solve for x
    x = 1,904,913,659.39/65,988.75
  6. Step 6: Final answer
    x = 28,867.25

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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.