Home / 82,826.88-124,240.32-64,320

Finding the Fourth Proportional to 82,826.88, 124,240.32 and 64,320

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Solution

The fourth proportional to 82,826.88, 124,240.32 and 64,320 is: 96,480

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,826.88 : 124,240.32 = 64,320 : x
  2. Step 2: Convert to fraction form
    82,826.88/124,240.32 = 64,320/x
  3. Step 3: Cross multiply
    82,826.88x = 124,240.32 × 64,320
  4. Step 4: Simplify right side
    82,826.88x = 7,991,137,382.40
  5. Step 5: Solve for x
    x = 7,991,137,382.40/82,826.88
  6. Step 6: Final answer
    x = 96,480

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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.