Home / 76,705.58-114,951.90-57,970.28

Finding the Fourth Proportional to 76,705.58, 114,951.90 and 57,970.28

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Solution

The fourth proportional to 76,705.58, 114,951.90 and 57,970.28 is: 86,874.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,705.58 : 114,951.90 = 57,970.28 : x
  2. Step 2: Convert to fraction form
    76,705.58/114,951.90 = 57,970.28/x
  3. Step 3: Cross multiply
    76,705.58x = 114,951.90 × 57,970.28
  4. Step 4: Simplify right side
    76,705.58x = 6,663,793,829.53
  5. Step 5: Solve for x
    x = 6,663,793,829.53/76,705.58
  6. Step 6: Final answer
    x = 86,874.96

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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.