Home / 45,010.56-67,431.99-28,148.79

Finding the Fourth Proportional to 45,010.56, 67,431.99 and 28,148.79

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Solution

The fourth proportional to 45,010.56, 67,431.99 and 28,148.79 is: 42,170.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,010.56 : 67,431.99 = 28,148.79 : x
  2. Step 2: Convert to fraction form
    45,010.56/67,431.99 = 28,148.79/x
  3. Step 3: Cross multiply
    45,010.56x = 67,431.99 × 28,148.79
  4. Step 4: Simplify right side
    45,010.56x = 1,898,128,925.79
  5. Step 5: Solve for x
    x = 1,898,128,925.79/45,010.56
  6. Step 6: Final answer
    x = 42,170.75

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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.