Home / 88,231.84-121,714.32-54,639.52

Finding the Fourth Proportional to 88,231.84, 121,714.32 and 54,639.52

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Solution

The fourth proportional to 88,231.84, 121,714.32 and 54,639.52 is: 75,374.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,231.84 : 121,714.32 = 54,639.52 : x
  2. Step 2: Convert to fraction form
    88,231.84/121,714.32 = 54,639.52/x
  3. Step 3: Cross multiply
    88,231.84x = 121,714.32 × 54,639.52
  4. Step 4: Simplify right side
    88,231.84x = 6,650,412,021.93
  5. Step 5: Solve for x
    x = 6,650,412,021.93/88,231.84
  6. Step 6: Final answer
    x = 75,374.29

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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.