Home / 52,114.14-78,171.24-12,671.28

Finding the Fourth Proportional to 52,114.14, 78,171.24 and 12,671.28

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Solution

The fourth proportional to 52,114.14, 78,171.24 and 12,671.28 is: 19,006.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,114.14 : 78,171.24 = 12,671.28 : x
  2. Step 2: Convert to fraction form
    52,114.14/78,171.24 = 12,671.28/x
  3. Step 3: Cross multiply
    52,114.14x = 78,171.24 × 12,671.28
  4. Step 4: Simplify right side
    52,114.14x = 990,529,669.99
  5. Step 5: Solve for x
    x = 990,529,669.99/52,114.14
  6. Step 6: Final answer
    x = 19,006.93

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1.5x scale

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.