Home / 68,675.04-103,013.93-45,132.67

Finding the Fourth Proportional to 68,675.04, 103,013.93 and 45,132.67

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Solution

The fourth proportional to 68,675.04, 103,013.93 and 45,132.67 is: 67,699.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,675.04 : 103,013.93 = 45,132.67 : x
  2. Step 2: Convert to fraction form
    68,675.04/103,013.93 = 45,132.67/x
  3. Step 3: Cross multiply
    68,675.04x = 103,013.93 × 45,132.67
  4. Step 4: Simplify right side
    68,675.04x = 4,649,293,406.09
  5. Step 5: Solve for x
    x = 4,649,293,406.09/68,675.04
  6. Step 6: Final answer
    x = 67,699.90

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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.