Home / 42,965.90-64,448.85-28,969.10

Finding the Fourth Proportional to 42,965.90, 64,448.85 and 28,969.10

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Solution

The fourth proportional to 42,965.90, 64,448.85 and 28,969.10 is: 43,453.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,965.90 : 64,448.85 = 28,969.10 : x
  2. Step 2: Convert to fraction form
    42,965.90/64,448.85 = 28,969.10/x
  3. Step 3: Cross multiply
    42,965.90x = 64,448.85 × 28,969.10
  4. Step 4: Simplify right side
    42,965.90x = 1,867,025,180.54
  5. Step 5: Solve for x
    x = 1,867,025,180.54/42,965.90
  6. Step 6: Final answer
    x = 43,453.65

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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.