Home / 53,985.35-81,005.36-36,418.27

Finding the Fourth Proportional to 53,985.35, 81,005.36 and 36,418.27

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Solution

The fourth proportional to 53,985.35, 81,005.36 and 36,418.27 is: 54,645.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,985.35 : 81,005.36 = 36,418.27 : x
  2. Step 2: Convert to fraction form
    53,985.35/81,005.36 = 36,418.27/x
  3. Step 3: Cross multiply
    53,985.35x = 81,005.36 × 36,418.27
  4. Step 4: Simplify right side
    53,985.35x = 2,950,074,960.46
  5. Step 5: Solve for x
    x = 2,950,074,960.46/53,985.35
  6. Step 6: Final answer
    x = 54,645.85

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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.