Home / 45,104.36-67,655.14-21,428.95

Finding the Fourth Proportional to 45,104.36, 67,655.14 and 21,428.95

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Solution

The fourth proportional to 45,104.36, 67,655.14 and 21,428.95 is: 32,142.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,104.36 : 67,655.14 = 21,428.95 : x
  2. Step 2: Convert to fraction form
    45,104.36/67,655.14 = 21,428.95/x
  3. Step 3: Cross multiply
    45,104.36x = 67,655.14 × 21,428.95
  4. Step 4: Simplify right side
    45,104.36x = 1,449,778,612.30
  5. Step 5: Solve for x
    x = 1,449,778,612.30/45,104.36
  6. Step 6: Final answer
    x = 32,142.76

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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.