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Finding the Fourth Proportional to 90,398, 124,749.24 and 52,672.26

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Solution

The fourth proportional to 90,398, 124,749.24 and 52,672.26 is: 72,687.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,398 : 124,749.24 = 52,672.26 : x
  2. Step 2: Convert to fraction form
    90,398/124,749.24 = 52,672.26/x
  3. Step 3: Cross multiply
    90,398x = 124,749.24 × 52,672.26
  4. Step 4: Simplify right side
    90,398x = 6,570,824,404.08
  5. Step 5: Solve for x
    x = 6,570,824,404.08/90,398
  6. Step 6: Final answer
    x = 72,687.72

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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.