Home / 76,866.53-115,302.38-26,981.37

Finding the Fourth Proportional to 76,866.53, 115,302.38 and 26,981.37

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Solution

The fourth proportional to 76,866.53, 115,302.38 and 26,981.37 is: 40,472.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,866.53 : 115,302.38 = 26,981.37 : x
  2. Step 2: Convert to fraction form
    76,866.53/115,302.38 = 26,981.37/x
  3. Step 3: Cross multiply
    76,866.53x = 115,302.38 × 26,981.37
  4. Step 4: Simplify right side
    76,866.53x = 3,111,016,041.75
  5. Step 5: Solve for x
    x = 3,111,016,041.75/76,866.53
  6. Step 6: Final answer
    x = 40,472.96

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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.