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Finding the Fourth Proportional to 70,401.17, 105,602.11 and 17,810.71

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Solution

The fourth proportional to 70,401.17, 105,602.11 and 17,810.71 is: 26,716.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,401.17 : 105,602.11 = 17,810.71 : x
  2. Step 2: Convert to fraction form
    70,401.17/105,602.11 = 17,810.71/x
  3. Step 3: Cross multiply
    70,401.17x = 105,602.11 × 17,810.71
  4. Step 4: Simplify right side
    70,401.17x = 1,880,848,248.07
  5. Step 5: Solve for x
    x = 1,880,848,248.07/70,401.17
  6. Step 6: Final answer
    x = 26,716.15

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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.