Home / 51,020.55-70,406.96-28,358.96

Finding the Fourth Proportional to 51,020.55, 70,406.96 and 28,358.96

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Solution

The fourth proportional to 51,020.55, 70,406.96 and 28,358.96 is: 39,134.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,020.55 : 70,406.96 = 28,358.96 : x
  2. Step 2: Convert to fraction form
    51,020.55/70,406.96 = 28,358.96/x
  3. Step 3: Cross multiply
    51,020.55x = 70,406.96 × 28,358.96
  4. Step 4: Simplify right side
    51,020.55x = 1,996,667,668.53
  5. Step 5: Solve for x
    x = 1,996,667,668.53/51,020.55
  6. Step 6: Final answer
    x = 39,134.58

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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.