Home / 55,534.72-76,639.44-31,665.28

Finding the Fourth Proportional to 55,534.72, 76,639.44 and 31,665.28

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Solution

The fourth proportional to 55,534.72, 76,639.44 and 31,665.28 is: 43,698.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,534.72 : 76,639.44 = 31,665.28 : x
  2. Step 2: Convert to fraction form
    55,534.72/76,639.44 = 31,665.28/x
  3. Step 3: Cross multiply
    55,534.72x = 76,639.44 × 31,665.28
  4. Step 4: Simplify right side
    55,534.72x = 2,426,809,326.64
  5. Step 5: Solve for x
    x = 2,426,809,326.64/55,534.72
  6. Step 6: Final answer
    x = 43,698.96

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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.