Home / 52,116.07-78,174.10-12,672.92

Finding the Fourth Proportional to 52,116.07, 78,174.10 and 12,672.92

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Solution

The fourth proportional to 52,116.07, 78,174.10 and 12,672.92 is: 19,009.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,116.07 : 78,174.10 = 12,672.92 : x
  2. Step 2: Convert to fraction form
    52,116.07/78,174.10 = 12,672.92/x
  3. Step 3: Cross multiply
    52,116.07x = 78,174.10 × 12,672.92
  4. Step 4: Simplify right side
    52,116.07x = 990,694,115.37
  5. Step 5: Solve for x
    x = 990,694,115.37/52,116.07
  6. Step 6: Final answer
    x = 19,009.38

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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.