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Finding the Fourth Proportional to 69,852.51, 96,404.68 and 39,230.64

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Solution

The fourth proportional to 69,852.51, 96,404.68 and 39,230.64 is: 54,142.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,852.51 : 96,404.68 = 39,230.64 : x
  2. Step 2: Convert to fraction form
    69,852.51/96,404.68 = 39,230.64/x
  3. Step 3: Cross multiply
    69,852.51x = 96,404.68 × 39,230.64
  4. Step 4: Simplify right side
    69,852.51x = 3,782,017,295.40
  5. Step 5: Solve for x
    x = 3,782,017,295.40/69,852.51
  6. Step 6: Final answer
    x = 54,142.90

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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.