Home / 52,119.12-78,178.05-12,676.28

Finding the Fourth Proportional to 52,119.12, 78,178.05 and 12,676.28

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Solution

The fourth proportional to 52,119.12, 78,178.05 and 12,676.28 is: 19,014.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,119.12 : 78,178.05 = 12,676.28 : x
  2. Step 2: Convert to fraction form
    52,119.12/78,178.05 = 12,676.28/x
  3. Step 3: Cross multiply
    52,119.12x = 78,178.05 × 12,676.28
  4. Step 4: Simplify right side
    52,119.12x = 991,006,851.65
  5. Step 5: Solve for x
    x = 991,006,851.65/52,119.12
  6. Step 6: Final answer
    x = 19,014.27

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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.