Home / 82,740.69-124,056.63-54,574.83

Finding the Fourth Proportional to 82,740.69, 124,056.63 and 54,574.83

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Solution

The fourth proportional to 82,740.69, 124,056.63 and 54,574.83 is: 81,826.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,740.69 : 124,056.63 = 54,574.83 : x
  2. Step 2: Convert to fraction form
    82,740.69/124,056.63 = 54,574.83/x
  3. Step 3: Cross multiply
    82,740.69x = 124,056.63 × 54,574.83
  4. Step 4: Simplify right side
    82,740.69x = 6,770,369,492.62
  5. Step 5: Solve for x
    x = 6,770,369,492.62/82,740.69
  6. Step 6: Final answer
    x = 81,826.36

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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.