Home / 43,356.80-65,072.24-30,907.28

Finding the Fourth Proportional to 43,356.80, 65,072.24 and 30,907.28

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Solution

The fourth proportional to 43,356.80, 65,072.24 and 30,907.28 is: 46,387.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,356.80 : 65,072.24 = 30,907.28 : x
  2. Step 2: Convert to fraction form
    43,356.80/65,072.24 = 30,907.28/x
  3. Step 3: Cross multiply
    43,356.80x = 65,072.24 × 30,907.28
  4. Step 4: Simplify right side
    43,356.80x = 2,011,205,941.91
  5. Step 5: Solve for x
    x = 2,011,205,941.91/43,356.80
  6. Step 6: Final answer
    x = 46,387.32

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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.