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Finding the Fourth Proportional to 90,959.58, 124,615.08 and 87,550.54

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Solution

The fourth proportional to 90,959.58, 124,615.08 and 87,550.54 is: 119,944.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,959.58 : 124,615.08 = 87,550.54 : x
  2. Step 2: Convert to fraction form
    90,959.58/124,615.08 = 87,550.54/x
  3. Step 3: Cross multiply
    90,959.58x = 124,615.08 × 87,550.54
  4. Step 4: Simplify right side
    90,959.58x = 10,910,117,234.61
  5. Step 5: Solve for x
    x = 10,910,117,234.61/90,959.58
  6. Step 6: Final answer
    x = 119,944.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.