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Finding the Fourth Proportional to 75,030.30, 104,015.34 and 71,035.38

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Solution

The fourth proportional to 75,030.30, 104,015.34 and 71,035.38 is: 98,477.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,030.30 : 104,015.34 = 71,035.38 : x
  2. Step 2: Convert to fraction form
    75,030.30/104,015.34 = 71,035.38/x
  3. Step 3: Cross multiply
    75,030.30x = 104,015.34 × 71,035.38
  4. Step 4: Simplify right side
    75,030.30x = 7,388,769,202.73
  5. Step 5: Solve for x
    x = 7,388,769,202.73/75,030.30
  6. Step 6: Final answer
    x = 98,477.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.