Home / 78,889.83-118,247.09-60,107.94

Finding the Fourth Proportional to 78,889.83, 118,247.09 and 60,107.94

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Solution

The fourth proportional to 78,889.83, 118,247.09 and 60,107.94 is: 90,095.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,889.83 : 118,247.09 = 60,107.94 : x
  2. Step 2: Convert to fraction form
    78,889.83/118,247.09 = 60,107.94/x
  3. Step 3: Cross multiply
    78,889.83x = 118,247.09 × 60,107.94
  4. Step 4: Simplify right side
    78,889.83x = 7,107,588,990.89
  5. Step 5: Solve for x
    x = 7,107,588,990.89/78,889.83
  6. Step 6: Final answer
    x = 90,095.12

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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.