Home / 53,379.09-73,655.60-30,709.44

Finding the Fourth Proportional to 53,379.09, 73,655.60 and 30,709.44

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Solution

The fourth proportional to 53,379.09, 73,655.60 and 30,709.44 is: 42,374.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,379.09 : 73,655.60 = 30,709.44 : x
  2. Step 2: Convert to fraction form
    53,379.09/73,655.60 = 30,709.44/x
  3. Step 3: Cross multiply
    53,379.09x = 73,655.60 × 30,709.44
  4. Step 4: Simplify right side
    53,379.09x = 2,261,922,075.32
  5. Step 5: Solve for x
    x = 2,261,922,075.32/53,379.09
  6. Step 6: Final answer
    x = 42,374.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.