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Finding the Fourth Proportional to 65,985.70, 99,000.28 and 43,886.02

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Solution

The fourth proportional to 65,985.70, 99,000.28 and 43,886.02 is: 65,843.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,985.70 : 99,000.28 = 43,886.02 : x
  2. Step 2: Convert to fraction form
    65,985.70/99,000.28 = 43,886.02/x
  3. Step 3: Cross multiply
    65,985.70x = 99,000.28 × 43,886.02
  4. Step 4: Simplify right side
    65,985.70x = 4,344,728,268.09
  5. Step 5: Solve for x
    x = 4,344,728,268.09/65,985.70
  6. Step 6: Final answer
    x = 65,843.48

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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.