Home / 45,221.95-67,823.13-28,559.71

Finding the Fourth Proportional to 45,221.95, 67,823.13 and 28,559.71

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Solution

The fourth proportional to 45,221.95, 67,823.13 and 28,559.71 is: 42,833.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,221.95 : 67,823.13 = 28,559.71 : x
  2. Step 2: Convert to fraction form
    45,221.95/67,823.13 = 28,559.71/x
  3. Step 3: Cross multiply
    45,221.95x = 67,823.13 × 28,559.71
  4. Step 4: Simplify right side
    45,221.95x = 1,937,008,584.98
  5. Step 5: Solve for x
    x = 1,937,008,584.98/45,221.95
  6. Step 6: Final answer
    x = 42,833.38

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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.