Home / 82,975.64-124,415.94-56,712.92

Finding the Fourth Proportional to 82,975.64, 124,415.94 and 56,712.92

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Solution

The fourth proportional to 82,975.64, 124,415.94 and 56,712.92 is: 85,036.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,975.64 : 124,415.94 = 56,712.92 : x
  2. Step 2: Convert to fraction form
    82,975.64/124,415.94 = 56,712.92/x
  3. Step 3: Cross multiply
    82,975.64x = 124,415.94 × 56,712.92
  4. Step 4: Simplify right side
    82,975.64x = 7,055,991,251.94
  5. Step 5: Solve for x
    x = 7,055,991,251.94/82,975.64
  6. Step 6: Final answer
    x = 85,036.90

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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.