Home / 66,252.34-91,398.07-39,379.58

Finding the Fourth Proportional to 66,252.34, 91,398.07 and 39,379.58

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Solution

The fourth proportional to 66,252.34, 91,398.07 and 39,379.58 is: 54,325.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,252.34 : 91,398.07 = 39,379.58 : x
  2. Step 2: Convert to fraction form
    66,252.34/91,398.07 = 39,379.58/x
  3. Step 3: Cross multiply
    66,252.34x = 91,398.07 × 39,379.58
  4. Step 4: Simplify right side
    66,252.34x = 3,599,217,609.41
  5. Step 5: Solve for x
    x = 3,599,217,609.41/66,252.34
  6. Step 6: Final answer
    x = 54,325.89

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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.