Home / 69,903.12-96,465.46-39,689.31

Finding the Fourth Proportional to 69,903.12, 96,465.46 and 39,689.31

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Solution

The fourth proportional to 69,903.12, 96,465.46 and 39,689.31 is: 54,770.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,903.12 : 96,465.46 = 39,689.31 : x
  2. Step 2: Convert to fraction form
    69,903.12/96,465.46 = 39,689.31/x
  3. Step 3: Cross multiply
    69,903.12x = 96,465.46 × 39,689.31
  4. Step 4: Simplify right side
    69,903.12x = 3,828,647,546.23
  5. Step 5: Solve for x
    x = 3,828,647,546.23/69,903.12
  6. Step 6: Final answer
    x = 54,770.77

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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.