Home / 57,117.62-85,682.18-19,672.76

Finding the Fourth Proportional to 57,117.62, 85,682.18 and 19,672.76

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Solution

The fourth proportional to 57,117.62, 85,682.18 and 19,672.76 is: 29,511.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,117.62 : 85,682.18 = 19,672.76 : x
  2. Step 2: Convert to fraction form
    57,117.62/85,682.18 = 19,672.76/x
  3. Step 3: Cross multiply
    57,117.62x = 85,682.18 × 19,672.76
  4. Step 4: Simplify right side
    57,117.62x = 1,685,604,865.05
  5. Step 5: Solve for x
    x = 1,685,604,865.05/57,117.62
  6. Step 6: Final answer
    x = 29,511.12

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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.