Home / 66,131.10-91,260.54-35,916.21

Finding the Fourth Proportional to 66,131.10, 91,260.54 and 35,916.21

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Solution

The fourth proportional to 66,131.10, 91,260.54 and 35,916.21 is: 49,564.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,131.10 : 91,260.54 = 35,916.21 : x
  2. Step 2: Convert to fraction form
    66,131.10/91,260.54 = 35,916.21/x
  3. Step 3: Cross multiply
    66,131.10x = 91,260.54 × 35,916.21
  4. Step 4: Simplify right side
    66,131.10x = 3,277,732,719.35
  5. Step 5: Solve for x
    x = 3,277,732,719.35/66,131.10
  6. Step 6: Final answer
    x = 49,564.16

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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.