Home / 68,075.56-102,146.10-51,317.65

Finding the Fourth Proportional to 68,075.56, 102,146.10 and 51,317.65

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Solution

The fourth proportional to 68,075.56, 102,146.10 and 51,317.65 is: 77,001.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,075.56 : 102,146.10 = 51,317.65 : x
  2. Step 2: Convert to fraction form
    68,075.56/102,146.10 = 51,317.65/x
  3. Step 3: Cross multiply
    68,075.56x = 102,146.10 × 51,317.65
  4. Step 4: Simplify right side
    68,075.56x = 5,241,897,808.67
  5. Step 5: Solve for x
    x = 5,241,897,808.67/68,075.56
  6. Step 6: Final answer
    x = 77,001.17

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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.