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Finding the Fourth Proportional to 52,395, 78,606.90 and 15,459

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Solution

The fourth proportional to 52,395, 78,606.90 and 15,459 is: 23,192.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,395 : 78,606.90 = 15,459 : x
  2. Step 2: Convert to fraction form
    52,395/78,606.90 = 15,459/x
  3. Step 3: Cross multiply
    52,395x = 78,606.90 × 15,459
  4. Step 4: Simplify right side
    52,395x = 1,215,184,067.10
  5. Step 5: Solve for x
    x = 1,215,184,067.10/52,395
  6. Step 6: Final answer
    x = 23,192.75

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.