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Finding the Fourth Proportional to 52,677.14, 78,978.77 and 19,392.87

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Solution

The fourth proportional to 52,677.14, 78,978.77 and 19,392.87 is: 29,075.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,677.14 : 78,978.77 = 19,392.87 : x
  2. Step 2: Convert to fraction form
    52,677.14/78,978.77 = 19,392.87/x
  3. Step 3: Cross multiply
    52,677.14x = 78,978.77 × 19,392.87
  4. Step 4: Simplify right side
    52,677.14x = 1,531,624,901.59
  5. Step 5: Solve for x
    x = 1,531,624,901.59/52,677.14
  6. Step 6: Final answer
    x = 29,075.71

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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.