Home / 90,733.64-136,070.22-38,133.32

Finding the Fourth Proportional to 90,733.64, 136,070.22 and 38,133.32

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Solution

The fourth proportional to 90,733.64, 136,070.22 and 38,133.32 is: 57,187.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,733.64 : 136,070.22 = 38,133.32 : x
  2. Step 2: Convert to fraction form
    90,733.64/136,070.22 = 38,133.32/x
  3. Step 3: Cross multiply
    90,733.64x = 136,070.22 × 38,133.32
  4. Step 4: Simplify right side
    90,733.64x = 5,188,809,241.73
  5. Step 5: Solve for x
    x = 5,188,809,241.73/90,733.64
  6. Step 6: Final answer
    x = 57,187.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.