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Finding the Fourth Proportional to 84,992.59, 117,200.72 and 63,447.78

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Solution

The fourth proportional to 84,992.59, 117,200.72 and 63,447.78 is: 87,491.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,992.59 : 117,200.72 = 63,447.78 : x
  2. Step 2: Convert to fraction form
    84,992.59/117,200.72 = 63,447.78/x
  3. Step 3: Cross multiply
    84,992.59x = 117,200.72 × 63,447.78
  4. Step 4: Simplify right side
    84,992.59x = 7,436,125,498.40
  5. Step 5: Solve for x
    x = 7,436,125,498.40/84,992.59
  6. Step 6: Final answer
    x = 87,491.46

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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.