Home / 55,200.30-82,800.45-52,781.10

Finding the Fourth Proportional to 55,200.30, 82,800.45 and 52,781.10

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Solution

The fourth proportional to 55,200.30, 82,800.45 and 52,781.10 is: 79,171.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,200.30 : 82,800.45 = 52,781.10 : x
  2. Step 2: Convert to fraction form
    55,200.30/82,800.45 = 52,781.10/x
  3. Step 3: Cross multiply
    55,200.30x = 82,800.45 × 52,781.10
  4. Step 4: Simplify right side
    55,200.30x = 4,370,298,831.50
  5. Step 5: Solve for x
    x = 4,370,298,831.50/55,200.30
  6. Step 6: Final answer
    x = 79,171.65

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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.