Home / 84,220.80-126,331.20-49,142.40

Finding the Fourth Proportional to 84,220.80, 126,331.20 and 49,142.40

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Solution

The fourth proportional to 84,220.80, 126,331.20 and 49,142.40 is: 73,713.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,220.80 : 126,331.20 = 49,142.40 : x
  2. Step 2: Convert to fraction form
    84,220.80/126,331.20 = 49,142.40/x
  3. Step 3: Cross multiply
    84,220.80x = 126,331.20 × 49,142.40
  4. Step 4: Simplify right side
    84,220.80x = 6,208,218,362.88
  5. Step 5: Solve for x
    x = 6,208,218,362.88/84,220.80
  6. Step 6: Final answer
    x = 73,713.60

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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.