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Finding the Fourth Proportional to 88,409.40, 122,007.63 and 54,437.49

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Solution

The fourth proportional to 88,409.40, 122,007.63 and 54,437.49 is: 75,125.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,409.40 : 122,007.63 = 54,437.49 : x
  2. Step 2: Convert to fraction form
    88,409.40/122,007.63 = 54,437.49/x
  3. Step 3: Cross multiply
    88,409.40x = 122,007.63 × 54,437.49
  4. Step 4: Simplify right side
    88,409.40x = 6,641,789,138.05
  5. Step 5: Solve for x
    x = 6,641,789,138.05/88,409.40
  6. Step 6: Final answer
    x = 75,125.37

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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.