Home / 82,820.40-124,230.60-54,826.80

Finding the Fourth Proportional to 82,820.40, 124,230.60 and 54,826.80

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Solution

The fourth proportional to 82,820.40, 124,230.60 and 54,826.80 is: 82,240.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,820.40 : 124,230.60 = 54,826.80 : x
  2. Step 2: Convert to fraction form
    82,820.40/124,230.60 = 54,826.80/x
  3. Step 3: Cross multiply
    82,820.40x = 124,230.60 × 54,826.80
  4. Step 4: Simplify right side
    82,820.40x = 6,811,166,260.08
  5. Step 5: Solve for x
    x = 6,811,166,260.08/82,820.40
  6. Step 6: Final answer
    x = 82,240.20

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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.