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Finding the Fourth Proportional to 50,894.42, 70,242.72 and 28,240.71

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Solution

The fourth proportional to 50,894.42, 70,242.72 and 28,240.71 is: 38,976.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,894.42 : 70,242.72 = 28,240.71 : x
  2. Step 2: Convert to fraction form
    50,894.42/70,242.72 = 28,240.71/x
  3. Step 3: Cross multiply
    50,894.42x = 70,242.72 × 28,240.71
  4. Step 4: Simplify right side
    50,894.42x = 1,983,704,206.38
  5. Step 5: Solve for x
    x = 1,983,704,206.38/50,894.42
  6. Step 6: Final answer
    x = 38,976.85

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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.