Home / 66,376.94-99,515.28-40,075.40

Finding the Fourth Proportional to 66,376.94, 99,515.28 and 40,075.40

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Solution

The fourth proportional to 66,376.94, 99,515.28 and 40,075.40 is: 60,082.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,376.94 : 99,515.28 = 40,075.40 : x
  2. Step 2: Convert to fraction form
    66,376.94/99,515.28 = 40,075.40/x
  3. Step 3: Cross multiply
    66,376.94x = 99,515.28 × 40,075.40
  4. Step 4: Simplify right side
    66,376.94x = 3,988,114,652.11
  5. Step 5: Solve for x
    x = 3,988,114,652.11/66,376.94
  6. Step 6: Final answer
    x = 60,082.83

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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.