Home / 76,962.57-115,619.04-55,680.95

Finding the Fourth Proportional to 76,962.57, 115,619.04 and 55,680.95

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Solution

The fourth proportional to 76,962.57, 115,619.04 and 55,680.95 is: 83,648.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,962.57 : 115,619.04 = 55,680.95 : x
  2. Step 2: Convert to fraction form
    76,962.57/115,619.04 = 55,680.95/x
  3. Step 3: Cross multiply
    76,962.57x = 115,619.04 × 55,680.95
  4. Step 4: Simplify right side
    76,962.57x = 6,437,777,407.19
  5. Step 5: Solve for x
    x = 6,437,777,407.19/76,962.57
  6. Step 6: Final answer
    x = 83,648.16

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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.