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Finding the Fourth Proportional to 64,950, 97,427.84 and 20,580.02

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Solution

The fourth proportional to 64,950, 97,427.84 and 20,580.02 is: 30,870.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,950 : 97,427.84 = 20,580.02 : x
  2. Step 2: Convert to fraction form
    64,950/97,427.84 = 20,580.02/x
  3. Step 3: Cross multiply
    64,950x = 97,427.84 × 20,580.02
  4. Step 4: Simplify right side
    64,950x = 2,005,067,036.43
  5. Step 5: Solve for x
    x = 2,005,067,036.43/64,950
  6. Step 6: Final answer
    x = 30,870.93

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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.