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Finding the Fourth Proportional to 73,114.31, 100,897.79 and 39,580.31

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Solution

The fourth proportional to 73,114.31, 100,897.79 and 39,580.31 is: 54,620.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,114.31 : 100,897.79 = 39,580.31 : x
  2. Step 2: Convert to fraction form
    73,114.31/100,897.79 = 39,580.31/x
  3. Step 3: Cross multiply
    73,114.31x = 100,897.79 × 39,580.31
  4. Step 4: Simplify right side
    73,114.31x = 3,993,565,860.86
  5. Step 5: Solve for x
    x = 3,993,565,860.86/73,114.31
  6. Step 6: Final answer
    x = 54,620.85

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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.