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Finding the Fourth Proportional to 90,441.93, 124,784.37 and 71,262.26

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Solution

The fourth proportional to 90,441.93, 124,784.37 and 71,262.26 is: 98,321.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,441.93 : 124,784.37 = 71,262.26 : x
  2. Step 2: Convert to fraction form
    90,441.93/124,784.37 = 71,262.26/x
  3. Step 3: Cross multiply
    90,441.93x = 124,784.37 × 71,262.26
  4. Step 4: Simplify right side
    90,441.93x = 8,892,415,594.95
  5. Step 5: Solve for x
    x = 8,892,415,594.95/90,441.93
  6. Step 6: Final answer
    x = 98,321.82

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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.