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Finding the Fourth Proportional to 88,711.11, 122,403.03 and 50,978.07

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Solution

The fourth proportional to 88,711.11, 122,403.03 and 50,978.07 is: 70,339.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,711.11 : 122,403.03 = 50,978.07 : x
  2. Step 2: Convert to fraction form
    88,711.11/122,403.03 = 50,978.07/x
  3. Step 3: Cross multiply
    88,711.11x = 122,403.03 × 50,978.07
  4. Step 4: Simplify right side
    88,711.11x = 6,239,870,231.55
  5. Step 5: Solve for x
    x = 6,239,870,231.55/88,711.11
  6. Step 6: Final answer
    x = 70,339.22

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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.