Home / 51,286.42-70,774.23-28,930.42

Finding the Fourth Proportional to 51,286.42, 70,774.23 and 28,930.42

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Solution

The fourth proportional to 51,286.42, 70,774.23 and 28,930.42 is: 39,923.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,286.42 : 70,774.23 = 28,930.42 : x
  2. Step 2: Convert to fraction form
    51,286.42/70,774.23 = 28,930.42/x
  3. Step 3: Cross multiply
    51,286.42x = 70,774.23 × 28,930.42
  4. Step 4: Simplify right side
    51,286.42x = 2,047,528,199.08
  5. Step 5: Solve for x
    x = 2,047,528,199.08/51,286.42
  6. Step 6: Final answer
    x = 39,923.40

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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.