Home / 52,065.72-78,079.75-18,776.85

Finding the Fourth Proportional to 52,065.72, 78,079.75 and 18,776.85

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Solution

The fourth proportional to 52,065.72, 78,079.75 and 18,776.85 is: 28,158.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,065.72 : 78,079.75 = 18,776.85 : x
  2. Step 2: Convert to fraction form
    52,065.72/78,079.75 = 18,776.85/x
  3. Step 3: Cross multiply
    52,065.72x = 78,079.75 × 18,776.85
  4. Step 4: Simplify right side
    52,065.72x = 1,466,091,414.05
  5. Step 5: Solve for x
    x = 1,466,091,414.05/52,065.72
  6. Step 6: Final answer
    x = 28,158.48

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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.