Home / 88,972.64-122,790.60-53,161.89

Finding the Fourth Proportional to 88,972.64, 122,790.60 and 53,161.89

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Solution

The fourth proportional to 88,972.64, 122,790.60 and 53,161.89 is: 73,368.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,972.64 : 122,790.60 = 53,161.89 : x
  2. Step 2: Convert to fraction form
    88,972.64/122,790.60 = 53,161.89/x
  3. Step 3: Cross multiply
    88,972.64x = 122,790.60 × 53,161.89
  4. Step 4: Simplify right side
    88,972.64x = 6,527,780,370.23
  5. Step 5: Solve for x
    x = 6,527,780,370.23/88,972.64
  6. Step 6: Final answer
    x = 73,368.40

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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.