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Finding the Fourth Proportional to 65,995.40, 98,984.04 and 21,616.88

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Solution

The fourth proportional to 65,995.40, 98,984.04 and 21,616.88 is: 32,422.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,995.40 : 98,984.04 = 21,616.88 : x
  2. Step 2: Convert to fraction form
    65,995.40/98,984.04 = 21,616.88/x
  3. Step 3: Cross multiply
    65,995.40x = 98,984.04 × 21,616.88
  4. Step 4: Simplify right side
    65,995.40x = 2,139,726,114.60
  5. Step 5: Solve for x
    x = 2,139,726,114.60/65,995.40
  6. Step 6: Final answer
    x = 32,422.35

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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.