Home / 66,554.09-91,833.80-39,326.38

Finding the Fourth Proportional to 66,554.09, 91,833.80 and 39,326.38

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Solution

The fourth proportional to 66,554.09, 91,833.80 and 39,326.38 is: 54,264.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,554.09 : 91,833.80 = 39,326.38 : x
  2. Step 2: Convert to fraction form
    66,554.09/91,833.80 = 39,326.38/x
  3. Step 3: Cross multiply
    66,554.09x = 91,833.80 × 39,326.38
  4. Step 4: Simplify right side
    66,554.09x = 3,611,490,981.28
  5. Step 5: Solve for x
    x = 3,611,490,981.28/66,554.09
  6. Step 6: Final answer
    x = 54,264.00

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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.