Home / 78,834.23-118,181.01-28,902.67

Finding the Fourth Proportional to 78,834.23, 118,181.01 and 28,902.67

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Solution

The fourth proportional to 78,834.23, 118,181.01 and 28,902.67 is: 43,328.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,834.23 : 118,181.01 = 28,902.67 : x
  2. Step 2: Convert to fraction form
    78,834.23/118,181.01 = 28,902.67/x
  3. Step 3: Cross multiply
    78,834.23x = 118,181.01 × 28,902.67
  4. Step 4: Simplify right side
    78,834.23x = 3,415,746,732.30
  5. Step 5: Solve for x
    x = 3,415,746,732.30/78,834.23
  6. Step 6: Final answer
    x = 43,328.22

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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.