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Finding the Fourth Proportional to 88,564, 122,218.32 and 55,030

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Solution

The fourth proportional to 88,564, 122,218.32 and 55,030 is: 75,941.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,564 : 122,218.32 = 55,030 : x
  2. Step 2: Convert to fraction form
    88,564/122,218.32 = 55,030/x
  3. Step 3: Cross multiply
    88,564x = 122,218.32 × 55,030
  4. Step 4: Simplify right side
    88,564x = 6,725,674,149.60
  5. Step 5: Solve for x
    x = 6,725,674,149.60/88,564
  6. Step 6: Final answer
    x = 75,941.40

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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.