Home / 53,490.13-80,205.63-36,642.43

Finding the Fourth Proportional to 53,490.13, 80,205.63 and 36,642.43

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Solution

The fourth proportional to 53,490.13, 80,205.63 and 36,642.43 is: 54,943.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,490.13 : 80,205.63 = 36,642.43 : x
  2. Step 2: Convert to fraction form
    53,490.13/80,205.63 = 36,642.43/x
  3. Step 3: Cross multiply
    53,490.13x = 80,205.63 × 36,642.43
  4. Step 4: Simplify right side
    53,490.13x = 2,938,929,182.88
  5. Step 5: Solve for x
    x = 2,938,929,182.88/53,490.13
  6. Step 6: Final answer
    x = 54,943.39

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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.