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Finding the Fourth Proportional to 88,339.59, 121,911.89 and 50,621.13

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Solution

The fourth proportional to 88,339.59, 121,911.89 and 50,621.13 is: 69,859.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,339.59 : 121,911.89 = 50,621.13 : x
  2. Step 2: Convert to fraction form
    88,339.59/121,911.89 = 50,621.13/x
  3. Step 3: Cross multiply
    88,339.59x = 121,911.89 × 50,621.13
  4. Step 4: Simplify right side
    88,339.59x = 6,171,317,379.13
  5. Step 5: Solve for x
    x = 6,171,317,379.13/88,339.59
  6. Step 6: Final answer
    x = 69,859.02

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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.