Home / 51,379.92-70,903.76-30,155.09

Finding the Fourth Proportional to 51,379.92, 70,903.76 and 30,155.09

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Solution

The fourth proportional to 51,379.92, 70,903.76 and 30,155.09 is: 41,613.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,379.92 : 70,903.76 = 30,155.09 : x
  2. Step 2: Convert to fraction form
    51,379.92/70,903.76 = 30,155.09/x
  3. Step 3: Cross multiply
    51,379.92x = 70,903.76 × 30,155.09
  4. Step 4: Simplify right side
    51,379.92x = 2,138,108,758.84
  5. Step 5: Solve for x
    x = 2,138,108,758.84/51,379.92
  6. Step 6: Final answer
    x = 41,613.70

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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.