Home / 52,072.27-78,108.40-12,629.04

Finding the Fourth Proportional to 52,072.27, 78,108.40 and 12,629.04

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Solution

The fourth proportional to 52,072.27, 78,108.40 and 12,629.04 is: 18,943.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,072.27 : 78,108.40 = 12,629.04 : x
  2. Step 2: Convert to fraction form
    52,072.27/78,108.40 = 12,629.04/x
  3. Step 3: Cross multiply
    52,072.27x = 78,108.40 × 12,629.04
  4. Step 4: Simplify right side
    52,072.27x = 986,434,050.50
  5. Step 5: Solve for x
    x = 986,434,050.50/52,072.27
  6. Step 6: Final answer
    x = 18,943.56

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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.