Home / 88,429.58-121,996.68-54,427.82

Finding the Fourth Proportional to 88,429.58, 121,996.68 and 54,427.82

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Solution

The fourth proportional to 88,429.58, 121,996.68 and 54,427.82 is: 75,088.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,429.58 : 121,996.68 = 54,427.82 : x
  2. Step 2: Convert to fraction form
    88,429.58/121,996.68 = 54,427.82/x
  3. Step 3: Cross multiply
    88,429.58x = 121,996.68 × 54,427.82
  4. Step 4: Simplify right side
    88,429.58x = 6,640,013,339.64
  5. Step 5: Solve for x
    x = 6,640,013,339.64/88,429.58
  6. Step 6: Final answer
    x = 75,088.15

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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.