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Finding the Fourth Proportional to 75,223.08, 103,830.72 and 43,412.76

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Solution

The fourth proportional to 75,223.08, 103,830.72 and 43,412.76 is: 59,922.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,223.08 : 103,830.72 = 43,412.76 : x
  2. Step 2: Convert to fraction form
    75,223.08/103,830.72 = 43,412.76/x
  3. Step 3: Cross multiply
    75,223.08x = 103,830.72 × 43,412.76
  4. Step 4: Simplify right side
    75,223.08x = 4,507,578,127.99
  5. Step 5: Solve for x
    x = 4,507,578,127.99/75,223.08
  6. Step 6: Final answer
    x = 59,922.81

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.