Home / 51,079.52-70,487.20-28,419.84

Finding the Fourth Proportional to 51,079.52, 70,487.20 and 28,419.84

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Solution

The fourth proportional to 51,079.52, 70,487.20 and 28,419.84 is: 39,217.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,079.52 : 70,487.20 = 28,419.84 : x
  2. Step 2: Convert to fraction form
    51,079.52/70,487.20 = 28,419.84/x
  3. Step 3: Cross multiply
    51,079.52x = 70,487.20 × 28,419.84
  4. Step 4: Simplify right side
    51,079.52x = 2,003,234,946.05
  5. Step 5: Solve for x
    x = 2,003,234,946.05/51,079.52
  6. Step 6: Final answer
    x = 39,217.97

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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.