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Finding the Fourth Proportional to 50,873.27, 70,203.69 and 28,212.15

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Solution

The fourth proportional to 50,873.27, 70,203.69 and 28,212.15 is: 38,931.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,873.27 : 70,203.69 = 28,212.15 : x
  2. Step 2: Convert to fraction form
    50,873.27/70,203.69 = 28,212.15/x
  3. Step 3: Cross multiply
    50,873.27x = 70,203.69 × 28,212.15
  4. Step 4: Simplify right side
    50,873.27x = 1,980,596,821.85
  5. Step 5: Solve for x
    x = 1,980,596,821.85/50,873.27
  6. Step 6: Final answer
    x = 38,931.98

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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.