Home / 42,756.20-64,077.80-30,949.44

Finding the Fourth Proportional to 42,756.20, 64,077.80 and 30,949.44

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Solution

The fourth proportional to 42,756.20, 64,077.80 and 30,949.44 is: 46,383.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,756.20 : 64,077.80 = 30,949.44 : x
  2. Step 2: Convert to fraction form
    42,756.20/64,077.80 = 30,949.44/x
  3. Step 3: Cross multiply
    42,756.20x = 64,077.80 × 30,949.44
  4. Step 4: Simplify right side
    42,756.20x = 1,983,172,026.43
  5. Step 5: Solve for x
    x = 1,983,172,026.43/42,756.20
  6. Step 6: Final answer
    x = 46,383.26

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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.