Home / 81,326.88-112,205.52-45,511.20

Finding the Fourth Proportional to 81,326.88, 112,205.52 and 45,511.20

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Solution

The fourth proportional to 81,326.88, 112,205.52 and 45,511.20 is: 62,791.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,326.88 : 112,205.52 = 45,511.20 : x
  2. Step 2: Convert to fraction form
    81,326.88/112,205.52 = 45,511.20/x
  3. Step 3: Cross multiply
    81,326.88x = 112,205.52 × 45,511.20
  4. Step 4: Simplify right side
    81,326.88x = 5,106,607,861.82
  5. Step 5: Solve for x
    x = 5,106,607,861.82/81,326.88
  6. Step 6: Final answer
    x = 62,791.14

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1.5x scale

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.