Home / 40,949.28-61,316.64-28,431.36

Finding the Fourth Proportional to 40,949.28, 61,316.64 and 28,431.36

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Solution

The fourth proportional to 40,949.28, 61,316.64 and 28,431.36 is: 42,572.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,949.28 : 61,316.64 = 28,431.36 : x
  2. Step 2: Convert to fraction form
    40,949.28/61,316.64 = 28,431.36/x
  3. Step 3: Cross multiply
    40,949.28x = 61,316.64 × 28,431.36
  4. Step 4: Simplify right side
    40,949.28x = 1,743,315,465.83
  5. Step 5: Solve for x
    x = 1,743,315,465.83/40,949.28
  6. Step 6: Final answer
    x = 42,572.55

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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.