Home / 76,633.62-115,016.04-43,386.36

Finding the Fourth Proportional to 76,633.62, 115,016.04 and 43,386.36

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Solution

The fourth proportional to 76,633.62, 115,016.04 and 43,386.36 is: 65,116.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,633.62 : 115,016.04 = 43,386.36 : x
  2. Step 2: Convert to fraction form
    76,633.62/115,016.04 = 43,386.36/x
  3. Step 3: Cross multiply
    76,633.62x = 115,016.04 × 43,386.36
  4. Step 4: Simplify right side
    76,633.62x = 4,990,127,317.21
  5. Step 5: Solve for x
    x = 4,990,127,317.21/76,633.62
  6. Step 6: Final answer
    x = 65,116.69

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1.5x scale

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.