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Finding the Fourth Proportional to 67,075.56, 92,563.56 and 38,780.64

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Solution

The fourth proportional to 67,075.56, 92,563.56 and 38,780.64 is: 53,516.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,075.56 : 92,563.56 = 38,780.64 : x
  2. Step 2: Convert to fraction form
    67,075.56/92,563.56 = 38,780.64/x
  3. Step 3: Cross multiply
    67,075.56x = 92,563.56 × 38,780.64
  4. Step 4: Simplify right side
    67,075.56x = 3,589,674,097.48
  5. Step 5: Solve for x
    x = 3,589,674,097.48/67,075.56
  6. Step 6: Final answer
    x = 53,516.87

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