Home / 66,272.34-91,455.13-39,414.26

Finding the Fourth Proportional to 66,272.34, 91,455.13 and 39,414.26

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Solution

The fourth proportional to 66,272.34, 91,455.13 and 39,414.26 is: 54,391.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,272.34 : 91,455.13 = 39,414.26 : x
  2. Step 2: Convert to fraction form
    66,272.34/91,455.13 = 39,414.26/x
  3. Step 3: Cross multiply
    66,272.34x = 91,455.13 × 39,414.26
  4. Step 4: Simplify right side
    66,272.34x = 3,604,636,328.35
  5. Step 5: Solve for x
    x = 3,604,636,328.35/66,272.34
  6. Step 6: Final answer
    x = 54,391.26

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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.