Home / 77,009.04-115,490.88-27,079.92

Finding the Fourth Proportional to 77,009.04, 115,490.88 and 27,079.92

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Solution

The fourth proportional to 77,009.04, 115,490.88 and 27,079.92 is: 40,611.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,009.04 : 115,490.88 = 27,079.92 : x
  2. Step 2: Convert to fraction form
    77,009.04/115,490.88 = 27,079.92/x
  3. Step 3: Cross multiply
    77,009.04x = 115,490.88 × 27,079.92
  4. Step 4: Simplify right side
    77,009.04x = 3,127,483,791.13
  5. Step 5: Solve for x
    x = 3,127,483,791.13/77,009.04
  6. Step 6: Final answer
    x = 40,611.90

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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.