Home / 71,376.02-107,055.75-18,789.61

Finding the Fourth Proportional to 71,376.02, 107,055.75 and 18,789.61

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Solution

The fourth proportional to 71,376.02, 107,055.75 and 18,789.61 is: 28,182.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,376.02 : 107,055.75 = 18,789.61 : x
  2. Step 2: Convert to fraction form
    71,376.02/107,055.75 = 18,789.61/x
  3. Step 3: Cross multiply
    71,376.02x = 107,055.75 × 18,789.61
  4. Step 4: Simplify right side
    71,376.02x = 2,011,535,523.12
  5. Step 5: Solve for x
    x = 2,011,535,523.12/71,376.02
  6. Step 6: Final answer
    x = 28,182.23

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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.