Home / 55,135.40-82,703.10-54,260.60

Finding the Fourth Proportional to 55,135.40, 82,703.10 and 54,260.60

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Solution

The fourth proportional to 55,135.40, 82,703.10 and 54,260.60 is: 81,390.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,135.40 : 82,703.10 = 54,260.60 : x
  2. Step 2: Convert to fraction form
    55,135.40/82,703.10 = 54,260.60/x
  3. Step 3: Cross multiply
    55,135.40x = 82,703.10 × 54,260.60
  4. Step 4: Simplify right side
    55,135.40x = 4,487,519,827.86
  5. Step 5: Solve for x
    x = 4,487,519,827.86/55,135.40
  6. Step 6: Final answer
    x = 81,390.90

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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.