Home / 52,119.63-78,178.79-12,676.77

Finding the Fourth Proportional to 52,119.63, 78,178.79 and 12,676.77

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Solution

The fourth proportional to 52,119.63, 78,178.79 and 12,676.77 is: 19,015.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,119.63 : 78,178.79 = 12,676.77 : x
  2. Step 2: Convert to fraction form
    52,119.63/78,178.79 = 12,676.77/x
  3. Step 3: Cross multiply
    52,119.63x = 78,178.79 × 12,676.77
  4. Step 4: Simplify right side
    52,119.63x = 991,054,571.40
  5. Step 5: Solve for x
    x = 991,054,571.40/52,119.63
  6. Step 6: Final answer
    x = 19,015.00

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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.