Home / 30,065.79-45,135.54-28,876.56

Finding the Fourth Proportional to 30,065.79, 45,135.54 and 28,876.56

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Solution

The fourth proportional to 30,065.79, 45,135.54 and 28,876.56 is: 43,350.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,065.79 : 45,135.54 = 28,876.56 : x
  2. Step 2: Convert to fraction form
    30,065.79/45,135.54 = 28,876.56/x
  3. Step 3: Cross multiply
    30,065.79x = 45,135.54 × 28,876.56
  4. Step 4: Simplify right side
    30,065.79x = 1,303,359,128.94
  5. Step 5: Solve for x
    x = 1,303,359,128.94/30,065.79
  6. Step 6: Final answer
    x = 43,350.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.