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Finding the Fourth Proportional to 76,992.93, 115,452.47 and 39,533.72

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Solution

The fourth proportional to 76,992.93, 115,452.47 and 39,533.72 is: 59,281.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,992.93 : 115,452.47 = 39,533.72 : x
  2. Step 2: Convert to fraction form
    76,992.93/115,452.47 = 39,533.72/x
  3. Step 3: Cross multiply
    76,992.93x = 115,452.47 × 39,533.72
  4. Step 4: Simplify right side
    76,992.93x = 4,564,264,847.36
  5. Step 5: Solve for x
    x = 4,564,264,847.36/76,992.93
  6. Step 6: Final answer
    x = 59,281.61

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1.5x scale

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.