Home / 84,826.91-117,070.49-48,531.72

Finding the Fourth Proportional to 84,826.91, 117,070.49 and 48,531.72

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Solution

The fourth proportional to 84,826.91, 117,070.49 and 48,531.72 is: 66,979.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,826.91 : 117,070.49 = 48,531.72 : x
  2. Step 2: Convert to fraction form
    84,826.91/117,070.49 = 48,531.72/x
  3. Step 3: Cross multiply
    84,826.91x = 117,070.49 × 48,531.72
  4. Step 4: Simplify right side
    84,826.91x = 5,681,631,998.28
  5. Step 5: Solve for x
    x = 5,681,631,998.28/84,826.91
  6. Step 6: Final answer
    x = 66,979.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.