Home / 66,893.09-92,299.43-39,664.13

Finding the Fourth Proportional to 66,893.09, 92,299.43 and 39,664.13

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Solution

The fourth proportional to 66,893.09, 92,299.43 and 39,664.13 is: 54,728.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,893.09 : 92,299.43 = 39,664.13 : x
  2. Step 2: Convert to fraction form
    66,893.09/92,299.43 = 39,664.13/x
  3. Step 3: Cross multiply
    66,893.09x = 92,299.43 × 39,664.13
  4. Step 4: Simplify right side
    66,893.09x = 3,660,976,228.11
  5. Step 5: Solve for x
    x = 3,660,976,228.11/66,893.09
  6. Step 6: Final answer
    x = 54,728.77

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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.