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Finding the Fourth Proportional to 90,289.98, 124,620.90 and 60,076.57

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Solution

The fourth proportional to 90,289.98, 124,620.90 and 60,076.57 is: 82,919.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,289.98 : 124,620.90 = 60,076.57 : x
  2. Step 2: Convert to fraction form
    90,289.98/124,620.90 = 60,076.57/x
  3. Step 3: Cross multiply
    90,289.98x = 124,620.90 × 60,076.57
  4. Step 4: Simplify right side
    90,289.98x = 7,486,796,222.31
  5. Step 5: Solve for x
    x = 7,486,796,222.31/90,289.98
  6. Step 6: Final answer
    x = 82,919.46

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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.