Home / 55,359.04-83,104.32-43,680.64

Finding the Fourth Proportional to 55,359.04, 83,104.32 and 43,680.64

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Solution

The fourth proportional to 55,359.04, 83,104.32 and 43,680.64 is: 65,572.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,359.04 : 83,104.32 = 43,680.64 : x
  2. Step 2: Convert to fraction form
    55,359.04/83,104.32 = 43,680.64/x
  3. Step 3: Cross multiply
    55,359.04x = 83,104.32 × 43,680.64
  4. Step 4: Simplify right side
    55,359.04x = 3,630,049,884.36
  5. Step 5: Solve for x
    x = 3,630,049,884.36/55,359.04
  6. Step 6: Final answer
    x = 65,572.85

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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.