Home / 84,506.48-126,778.92-45,042.80

Finding the Fourth Proportional to 84,506.48, 126,778.92 and 45,042.80

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Solution

The fourth proportional to 84,506.48, 126,778.92 and 45,042.80 is: 67,574.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,506.48 : 126,778.92 = 45,042.80 : x
  2. Step 2: Convert to fraction form
    84,506.48/126,778.92 = 45,042.80/x
  3. Step 3: Cross multiply
    84,506.48x = 126,778.92 × 45,042.80
  4. Step 4: Simplify right side
    84,506.48x = 5,710,477,537.78
  5. Step 5: Solve for x
    x = 5,710,477,537.78/84,506.48
  6. Step 6: Final answer
    x = 67,574.43

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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.