Home / 72,741.37-108,959.77-58,621.45

Finding the Fourth Proportional to 72,741.37, 108,959.77 and 58,621.45

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Solution

The fourth proportional to 72,741.37, 108,959.77 and 58,621.45 is: 87,809.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,741.37 : 108,959.77 = 58,621.45 : x
  2. Step 2: Convert to fraction form
    72,741.37/108,959.77 = 58,621.45/x
  3. Step 3: Cross multiply
    72,741.37x = 108,959.77 × 58,621.45
  4. Step 4: Simplify right side
    72,741.37x = 6,387,379,709.07
  5. Step 5: Solve for x
    x = 6,387,379,709.07/72,741.37
  6. Step 6: Final answer
    x = 87,809.45

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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.