Home / 76,531.40-114,819.78-36,580.28

Finding the Fourth Proportional to 76,531.40, 114,819.78 and 36,580.28

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Solution

The fourth proportional to 76,531.40, 114,819.78 and 36,580.28 is: 54,881.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,531.40 : 114,819.78 = 36,580.28 : x
  2. Step 2: Convert to fraction form
    76,531.40/114,819.78 = 36,580.28/x
  3. Step 3: Cross multiply
    76,531.40x = 114,819.78 × 36,580.28
  4. Step 4: Simplify right side
    76,531.40x = 4,200,139,701.94
  5. Step 5: Solve for x
    x = 4,200,139,701.94/76,531.40
  6. Step 6: Final answer
    x = 54,881.26

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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.