Home / 53,742.88-80,628.90-18,685.27

Finding the Fourth Proportional to 53,742.88, 80,628.90 and 18,685.27

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Solution

The fourth proportional to 53,742.88, 80,628.90 and 18,685.27 is: 28,032.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,742.88 : 80,628.90 = 18,685.27 : x
  2. Step 2: Convert to fraction form
    53,742.88/80,628.90 = 18,685.27/x
  3. Step 3: Cross multiply
    53,742.88x = 80,628.90 × 18,685.27
  4. Step 4: Simplify right side
    53,742.88x = 1,506,572,766.30
  5. Step 5: Solve for x
    x = 1,506,572,766.30/53,742.88
  6. Step 6: Final answer
    x = 28,032.97

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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.