Home / 66,238.38-91,649.65-57,758.19

Finding the Fourth Proportional to 66,238.38, 91,649.65 and 57,758.19

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Solution

The fourth proportional to 66,238.38, 91,649.65 and 57,758.19 is: 79,916.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,238.38 : 91,649.65 = 57,758.19 : x
  2. Step 2: Convert to fraction form
    66,238.38/91,649.65 = 57,758.19/x
  3. Step 3: Cross multiply
    66,238.38x = 91,649.65 × 57,758.19
  4. Step 4: Simplify right side
    66,238.38x = 5,293,517,410.05
  5. Step 5: Solve for x
    x = 5,293,517,410.05/66,238.38
  6. Step 6: Final answer
    x = 79,916.17

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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.