Home / 84,604.50-126,908.79-28,445.34

Finding the Fourth Proportional to 84,604.50, 126,908.79 and 28,445.34

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Solution

The fourth proportional to 84,604.50, 126,908.79 and 28,445.34 is: 42,668.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,604.50 : 126,908.79 = 28,445.34 : x
  2. Step 2: Convert to fraction form
    84,604.50/126,908.79 = 28,445.34/x
  3. Step 3: Cross multiply
    84,604.50x = 126,908.79 × 28,445.34
  4. Step 4: Simplify right side
    84,604.50x = 3,609,963,680.54
  5. Step 5: Solve for x
    x = 3,609,963,680.54/84,604.50
  6. Step 6: Final answer
    x = 42,668.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.