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Finding the Fourth Proportional to 64,454.78, 96,684.79 and 30,703.45

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Solution

The fourth proportional to 64,454.78, 96,684.79 and 30,703.45 is: 46,056.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,454.78 : 96,684.79 = 30,703.45 : x
  2. Step 2: Convert to fraction form
    64,454.78/96,684.79 = 30,703.45/x
  3. Step 3: Cross multiply
    64,454.78x = 96,684.79 × 30,703.45
  4. Step 4: Simplify right side
    64,454.78x = 2,968,556,263.98
  5. Step 5: Solve for x
    x = 2,968,556,263.98/64,454.78
  6. Step 6: Final answer
    x = 46,056.42

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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.