Home / 84,604.80-126,896.18-40,259.76

Finding the Fourth Proportional to 84,604.80, 126,896.18 and 40,259.76

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Solution

The fourth proportional to 84,604.80, 126,896.18 and 40,259.76 is: 60,384.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,604.80 : 126,896.18 = 40,259.76 : x
  2. Step 2: Convert to fraction form
    84,604.80/126,896.18 = 40,259.76/x
  3. Step 3: Cross multiply
    84,604.80x = 126,896.18 × 40,259.76
  4. Step 4: Simplify right side
    84,604.80x = 5,108,809,751.72
  5. Step 5: Solve for x
    x = 5,108,809,751.72/84,604.80
  6. Step 6: Final answer
    x = 60,384.40

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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.