Home / 66,513.83-91,785.71-36,298.90

Finding the Fourth Proportional to 66,513.83, 91,785.71 and 36,298.90

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Solution

The fourth proportional to 66,513.83, 91,785.71 and 36,298.90 is: 50,090.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,513.83 : 91,785.71 = 36,298.90 : x
  2. Step 2: Convert to fraction form
    66,513.83/91,785.71 = 36,298.90/x
  3. Step 3: Cross multiply
    66,513.83x = 91,785.71 × 36,298.90
  4. Step 4: Simplify right side
    66,513.83x = 3,331,720,310.02
  5. Step 5: Solve for x
    x = 3,331,720,310.02/66,513.83
  6. Step 6: Final answer
    x = 50,090.64

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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.