Home / 40,907.77-61,287.50-18,739.69

Finding the Fourth Proportional to 40,907.77, 61,287.50 and 18,739.69

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Solution

The fourth proportional to 40,907.77, 61,287.50 and 18,739.69 is: 28,075.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,907.77 : 61,287.50 = 18,739.69 : x
  2. Step 2: Convert to fraction form
    40,907.77/61,287.50 = 18,739.69/x
  3. Step 3: Cross multiply
    40,907.77x = 61,287.50 × 18,739.69
  4. Step 4: Simplify right side
    40,907.77x = 1,148,508,657.18
  5. Step 5: Solve for x
    x = 1,148,508,657.18/40,907.77
  6. Step 6: Final answer
    x = 28,075.56

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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.