Home / 45,104.37-67,655.13-21,428.95

Finding the Fourth Proportional to 45,104.37, 67,655.13 and 21,428.95

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Solution

The fourth proportional to 45,104.37, 67,655.13 and 21,428.95 is: 32,142.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,104.37 : 67,655.13 = 21,428.95 : x
  2. Step 2: Convert to fraction form
    45,104.37/67,655.13 = 21,428.95/x
  3. Step 3: Cross multiply
    45,104.37x = 67,655.13 × 21,428.95
  4. Step 4: Simplify right side
    45,104.37x = 1,449,778,398.01
  5. Step 5: Solve for x
    x = 1,449,778,398.01/45,104.37
  6. Step 6: Final answer
    x = 32,142.75

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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.