Home / 90,556.56-125,087.76-75,498.48

Finding the Fourth Proportional to 90,556.56, 125,087.76 and 75,498.48

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Solution

The fourth proportional to 90,556.56, 125,087.76 and 75,498.48 is: 104,287.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,556.56 : 125,087.76 = 75,498.48 : x
  2. Step 2: Convert to fraction form
    90,556.56/125,087.76 = 75,498.48/x
  3. Step 3: Cross multiply
    90,556.56x = 125,087.76 × 75,498.48
  4. Step 4: Simplify right side
    90,556.56x = 9,443,935,746.60
  5. Step 5: Solve for x
    x = 9,443,935,746.60/90,556.56
  6. Step 6: Final answer
    x = 104,287.70

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1.5x scale

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.