Home / 76,140.98-114,175.93-28,719.53

Finding the Fourth Proportional to 76,140.98, 114,175.93 and 28,719.53

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Solution

The fourth proportional to 76,140.98, 114,175.93 and 28,719.53 is: 43,065.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,140.98 : 114,175.93 = 28,719.53 : x
  2. Step 2: Convert to fraction form
    76,140.98/114,175.93 = 28,719.53/x
  3. Step 3: Cross multiply
    76,140.98x = 114,175.93 × 28,719.53
  4. Step 4: Simplify right side
    76,140.98x = 3,279,078,886.24
  5. Step 5: Solve for x
    x = 3,279,078,886.24/76,140.98
  6. Step 6: Final answer
    x = 43,065.89

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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.