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Finding the Fourth Proportional to 77,436, 106,845.21 and 45,593.28

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Solution

The fourth proportional to 77,436, 106,845.21 and 45,593.28 is: 62,909.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,436 : 106,845.21 = 45,593.28 : x
  2. Step 2: Convert to fraction form
    77,436/106,845.21 = 45,593.28/x
  3. Step 3: Cross multiply
    77,436x = 106,845.21 × 45,593.28
  4. Step 4: Simplify right side
    77,436x = 4,871,423,576.19
  5. Step 5: Solve for x
    x = 4,871,423,576.19/77,436
  6. Step 6: Final answer
    x = 62,909.03

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.