Home / 42,660.29-63,999.77-13,080.44

Finding the Fourth Proportional to 42,660.29, 63,999.77 and 13,080.44

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Solution

The fourth proportional to 42,660.29, 63,999.77 and 13,080.44 is: 19,623.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,660.29 : 63,999.77 = 13,080.44 : x
  2. Step 2: Convert to fraction form
    42,660.29/63,999.77 = 13,080.44/x
  3. Step 3: Cross multiply
    42,660.29x = 63,999.77 × 13,080.44
  4. Step 4: Simplify right side
    42,660.29x = 837,144,766.10
  5. Step 5: Solve for x
    x = 837,144,766.10/42,660.29
  6. Step 6: Final answer
    x = 19,623.52

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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.