Home / 91,738.02-126,481.28-59,415.54

Finding the Fourth Proportional to 91,738.02, 126,481.28 and 59,415.54

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Solution

The fourth proportional to 91,738.02, 126,481.28 and 59,415.54 is: 81,917.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,738.02 : 126,481.28 = 59,415.54 : x
  2. Step 2: Convert to fraction form
    91,738.02/126,481.28 = 59,415.54/x
  3. Step 3: Cross multiply
    91,738.02x = 126,481.28 × 59,415.54
  4. Step 4: Simplify right side
    91,738.02x = 7,514,953,551.09
  5. Step 5: Solve for x
    x = 7,514,953,551.09/91,738.02
  6. Step 6: Final answer
    x = 81,917.55

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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.