Home / 51,800.80-71,511.12-30,586.72

Finding the Fourth Proportional to 51,800.80, 71,511.12 and 30,586.72

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Solution

The fourth proportional to 51,800.80, 71,511.12 and 30,586.72 is: 42,225.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,800.80 : 71,511.12 = 30,586.72 : x
  2. Step 2: Convert to fraction form
    51,800.80/71,511.12 = 30,586.72/x
  3. Step 3: Cross multiply
    51,800.80x = 71,511.12 × 30,586.72
  4. Step 4: Simplify right side
    51,800.80x = 2,187,290,604.33
  5. Step 5: Solve for x
    x = 2,187,290,604.33/51,800.80
  6. Step 6: Final answer
    x = 42,225.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.