Home / 76,631.12-114,808.44-43,730

Finding the Fourth Proportional to 76,631.12, 114,808.44 and 43,730

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Solution

The fourth proportional to 76,631.12, 114,808.44 and 43,730 is: 65,516.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,631.12 : 114,808.44 = 43,730 : x
  2. Step 2: Convert to fraction form
    76,631.12/114,808.44 = 43,730/x
  3. Step 3: Cross multiply
    76,631.12x = 114,808.44 × 43,730
  4. Step 4: Simplify right side
    76,631.12x = 5,020,573,081.20
  5. Step 5: Solve for x
    x = 5,020,573,081.20/76,631.12
  6. Step 6: Final answer
    x = 65,516.11

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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.