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Finding the Fourth Proportional to 85,216.86, 117,811.83 and 63,959.22

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Solution

The fourth proportional to 85,216.86, 117,811.83 and 63,959.22 is: 88,423.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,216.86 : 117,811.83 = 63,959.22 : x
  2. Step 2: Convert to fraction form
    85,216.86/117,811.83 = 63,959.22/x
  3. Step 3: Cross multiply
    85,216.86x = 117,811.83 × 63,959.22
  4. Step 4: Simplify right side
    85,216.86x = 7,535,152,753.57
  5. Step 5: Solve for x
    x = 7,535,152,753.57/85,216.86
  6. Step 6: Final answer
    x = 88,423.26

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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.