Home / 90,996.64-125,639.38-63,830.46

Finding the Fourth Proportional to 90,996.64, 125,639.38 and 63,830.46

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Solution

The fourth proportional to 90,996.64, 125,639.38 and 63,830.46 is: 88,130.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,996.64 : 125,639.38 = 63,830.46 : x
  2. Step 2: Convert to fraction form
    90,996.64/125,639.38 = 63,830.46/x
  3. Step 3: Cross multiply
    90,996.64x = 125,639.38 × 63,830.46
  4. Step 4: Simplify right side
    90,996.64x = 8,019,619,419.51
  5. Step 5: Solve for x
    x = 8,019,619,419.51/90,996.64
  6. Step 6: Final answer
    x = 88,130.94

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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.