Home / 85,329.14-127,898.31-31,969.77

Finding the Fourth Proportional to 85,329.14, 127,898.31 and 31,969.77

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Solution

The fourth proportional to 85,329.14, 127,898.31 and 31,969.77 is: 47,918.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,329.14 : 127,898.31 = 31,969.77 : x
  2. Step 2: Convert to fraction form
    85,329.14/127,898.31 = 31,969.77/x
  3. Step 3: Cross multiply
    85,329.14x = 127,898.31 × 31,969.77
  4. Step 4: Simplify right side
    85,329.14x = 4,088,879,554.09
  5. Step 5: Solve for x
    x = 4,088,879,554.09/85,329.14
  6. Step 6: Final answer
    x = 47,918.91

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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.