Home / 56,399.55-77,832.59-30,907.77

Finding the Fourth Proportional to 56,399.55, 77,832.59 and 30,907.77

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Solution

The fourth proportional to 56,399.55, 77,832.59 and 30,907.77 is: 42,653.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,399.55 : 77,832.59 = 30,907.77 : x
  2. Step 2: Convert to fraction form
    56,399.55/77,832.59 = 30,907.77/x
  3. Step 3: Cross multiply
    56,399.55x = 77,832.59 × 30,907.77
  4. Step 4: Simplify right side
    56,399.55x = 2,405,631,790.22
  5. Step 5: Solve for x
    x = 2,405,631,790.22/56,399.55
  6. Step 6: Final answer
    x = 42,653.39

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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.