Home / 78,658.36-108,556.38-48,029.77

Finding the Fourth Proportional to 78,658.36, 108,556.38 and 48,029.77

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Solution

The fourth proportional to 78,658.36, 108,556.38 and 48,029.77 is: 66,285.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,658.36 : 108,556.38 = 48,029.77 : x
  2. Step 2: Convert to fraction form
    78,658.36/108,556.38 = 48,029.77/x
  3. Step 3: Cross multiply
    78,658.36x = 108,556.38 × 48,029.77
  4. Step 4: Simplify right side
    78,658.36x = 5,213,937,963.43
  5. Step 5: Solve for x
    x = 5,213,937,963.43/78,658.36
  6. Step 6: Final answer
    x = 66,285.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.