Home / 90,769.47-125,243.46-53,036.43

Finding the Fourth Proportional to 90,769.47, 125,243.46 and 53,036.43

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Solution

The fourth proportional to 90,769.47, 125,243.46 and 53,036.43 is: 73,179.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,769.47 : 125,243.46 = 53,036.43 : x
  2. Step 2: Convert to fraction form
    90,769.47/125,243.46 = 53,036.43/x
  3. Step 3: Cross multiply
    90,769.47x = 125,243.46 × 53,036.43
  4. Step 4: Simplify right side
    90,769.47x = 6,642,465,999.25
  5. Step 5: Solve for x
    x = 6,642,465,999.25/90,769.47
  6. Step 6: Final answer
    x = 73,179.52

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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.