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Finding the Fourth Proportional to 72,473.64, 100,014.64 and 43,789.30

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Solution

The fourth proportional to 72,473.64, 100,014.64 and 43,789.30 is: 60,429.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,473.64 : 100,014.64 = 43,789.30 : x
  2. Step 2: Convert to fraction form
    72,473.64/100,014.64 = 43,789.30/x
  3. Step 3: Cross multiply
    72,473.64x = 100,014.64 × 43,789.30
  4. Step 4: Simplify right side
    72,473.64x = 4,379,571,075.35
  5. Step 5: Solve for x
    x = 4,379,571,075.35/72,473.64
  6. Step 6: Final answer
    x = 60,429.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.