Home / 52,131.51-78,180.75-18,847.17

Finding the Fourth Proportional to 52,131.51, 78,180.75 and 18,847.17

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Solution

The fourth proportional to 52,131.51, 78,180.75 and 18,847.17 is: 28,264.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,131.51 : 78,180.75 = 18,847.17 : x
  2. Step 2: Convert to fraction form
    52,131.51/78,180.75 = 18,847.17/x
  3. Step 3: Cross multiply
    52,131.51x = 78,180.75 × 18,847.17
  4. Step 4: Simplify right side
    52,131.51x = 1,473,485,885.98
  5. Step 5: Solve for x
    x = 1,473,485,885.98/52,131.51
  6. Step 6: Final answer
    x = 28,264.78

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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.