Home / 55,140.35-82,086.93-54,812.30

Finding the Fourth Proportional to 55,140.35, 82,086.93 and 54,812.30

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Solution

The fourth proportional to 55,140.35, 82,086.93 and 54,812.30 is: 81,598.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,140.35 : 82,086.93 = 54,812.30 : x
  2. Step 2: Convert to fraction form
    55,140.35/82,086.93 = 54,812.30/x
  3. Step 3: Cross multiply
    55,140.35x = 82,086.93 × 54,812.30
  4. Step 4: Simplify right side
    55,140.35x = 4,499,373,022.80
  5. Step 5: Solve for x
    x = 4,499,373,022.80/55,140.35
  6. Step 6: Final answer
    x = 81,598.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.