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Finding the Fourth Proportional to 45,402.17, 68,103.27 and 13,812.17

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Solution

The fourth proportional to 45,402.17, 68,103.27 and 13,812.17 is: 20,718.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,402.17 : 68,103.27 = 13,812.17 : x
  2. Step 2: Convert to fraction form
    45,402.17/68,103.27 = 13,812.17/x
  3. Step 3: Cross multiply
    45,402.17x = 68,103.27 × 13,812.17
  4. Step 4: Simplify right side
    45,402.17x = 940,653,602.28
  5. Step 5: Solve for x
    x = 940,653,602.28/45,402.17
  6. Step 6: Final answer
    x = 20,718.25

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Similar ratio
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1.5x scale

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.