Home / 69,871.50-96,429.96-39,664.98

Finding the Fourth Proportional to 69,871.50, 96,429.96 and 39,664.98

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Solution

The fourth proportional to 69,871.50, 96,429.96 and 39,664.98 is: 54,741.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,871.50 : 96,429.96 = 39,664.98 : x
  2. Step 2: Convert to fraction form
    69,871.50/96,429.96 = 39,664.98/x
  3. Step 3: Cross multiply
    69,871.50x = 96,429.96 × 39,664.98
  4. Step 4: Simplify right side
    69,871.50x = 3,824,892,434.80
  5. Step 5: Solve for x
    x = 3,824,892,434.80/69,871.50
  6. Step 6: Final answer
    x = 54,741.81

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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.