Home / 68,075.20-102,099.30-64,699.60

Finding the Fourth Proportional to 68,075.20, 102,099.30 and 64,699.60

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Solution

The fourth proportional to 68,075.20, 102,099.30 and 64,699.60 is: 97,036.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,075.20 : 102,099.30 = 64,699.60 : x
  2. Step 2: Convert to fraction form
    68,075.20/102,099.30 = 64,699.60/x
  3. Step 3: Cross multiply
    68,075.20x = 102,099.30 × 64,699.60
  4. Step 4: Simplify right side
    68,075.20x = 6,605,783,870.28
  5. Step 5: Solve for x
    x = 6,605,783,870.28/68,075.20
  6. Step 6: Final answer
    x = 97,036.57

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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.