Home / 66,732.19-92,081.31-39,868.99

Finding the Fourth Proportional to 66,732.19, 92,081.31 and 39,868.99

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Solution

The fourth proportional to 66,732.19, 92,081.31 and 39,868.99 is: 55,013.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,732.19 : 92,081.31 = 39,868.99 : x
  2. Step 2: Convert to fraction form
    66,732.19/92,081.31 = 39,868.99/x
  3. Step 3: Cross multiply
    66,732.19x = 92,081.31 × 39,868.99
  4. Step 4: Simplify right side
    66,732.19x = 3,671,188,827.58
  5. Step 5: Solve for x
    x = 3,671,188,827.58/66,732.19
  6. Step 6: Final answer
    x = 55,013.76

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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.