Home / 78,630.41-108,514.52-59,214.56

Finding the Fourth Proportional to 78,630.41, 108,514.52 and 59,214.56

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Solution

The fourth proportional to 78,630.41, 108,514.52 and 59,214.56 is: 81,719.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,630.41 : 108,514.52 = 59,214.56 : x
  2. Step 2: Convert to fraction form
    78,630.41/108,514.52 = 59,214.56/x
  3. Step 3: Cross multiply
    78,630.41x = 108,514.52 × 59,214.56
  4. Step 4: Simplify right side
    78,630.41x = 6,425,639,974.73
  5. Step 5: Solve for x
    x = 6,425,639,974.73/78,630.41
  6. Step 6: Final answer
    x = 81,719.53

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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.