Home / 76,961.70-115,482.47-58,236.12

Finding the Fourth Proportional to 76,961.70, 115,482.47 and 58,236.12

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Solution

The fourth proportional to 76,961.70, 115,482.47 and 58,236.12 is: 87,384.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,961.70 : 115,482.47 = 58,236.12 : x
  2. Step 2: Convert to fraction form
    76,961.70/115,482.47 = 58,236.12/x
  3. Step 3: Cross multiply
    76,961.70x = 115,482.47 × 58,236.12
  4. Step 4: Simplify right side
    76,961.70x = 6,725,250,689.64
  5. Step 5: Solve for x
    x = 6,725,250,689.64/76,961.70
  6. Step 6: Final answer
    x = 87,384.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.