Home / 45,428.39-68,145.47-14,264.87

Finding the Fourth Proportional to 45,428.39, 68,145.47 and 14,264.87

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Solution

The fourth proportional to 45,428.39, 68,145.47 and 14,264.87 is: 21,398.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,428.39 : 68,145.47 = 14,264.87 : x
  2. Step 2: Convert to fraction form
    45,428.39/68,145.47 = 14,264.87/x
  3. Step 3: Cross multiply
    45,428.39x = 68,145.47 × 14,264.87
  4. Step 4: Simplify right side
    45,428.39x = 972,086,270.64
  5. Step 5: Solve for x
    x = 972,086,270.64/45,428.39
  6. Step 6: Final answer
    x = 21,398.21

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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.