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Finding the Fourth Proportional to 69,669.32, 96,143.63 and 39,454.63

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Solution

The fourth proportional to 69,669.32, 96,143.63 and 39,454.63 is: 54,447.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,669.32 : 96,143.63 = 39,454.63 : x
  2. Step 2: Convert to fraction form
    69,669.32/96,143.63 = 39,454.63/x
  3. Step 3: Cross multiply
    69,669.32x = 96,143.63 × 39,454.63
  4. Step 4: Simplify right side
    69,669.32x = 3,793,311,271.41
  5. Step 5: Solve for x
    x = 3,793,311,271.41/69,669.32
  6. Step 6: Final answer
    x = 54,447.37

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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.