Home / 55,073.69-76,005.45-31,200.56

Finding the Fourth Proportional to 55,073.69, 76,005.45 and 31,200.56

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Solution

The fourth proportional to 55,073.69, 76,005.45 and 31,200.56 is: 43,058.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,073.69 : 76,005.45 = 31,200.56 : x
  2. Step 2: Convert to fraction form
    55,073.69/76,005.45 = 31,200.56/x
  3. Step 3: Cross multiply
    55,073.69x = 76,005.45 × 31,200.56
  4. Step 4: Simplify right side
    55,073.69x = 2,371,412,067.02
  5. Step 5: Solve for x
    x = 2,371,412,067.02/55,073.69
  6. Step 6: Final answer
    x = 43,058.90

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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.