Home / 55,965.04-77,231.28-30,814

Finding the Fourth Proportional to 55,965.04, 77,231.28 and 30,814

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Solution

The fourth proportional to 55,965.04, 77,231.28 and 30,814 is: 42,523.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,965.04 : 77,231.28 = 30,814 : x
  2. Step 2: Convert to fraction form
    55,965.04/77,231.28 = 30,814/x
  3. Step 3: Cross multiply
    55,965.04x = 77,231.28 × 30,814
  4. Step 4: Simplify right side
    55,965.04x = 2,379,804,661.92
  5. Step 5: Solve for x
    x = 2,379,804,661.92/55,965.04
  6. Step 6: Final answer
    x = 42,523.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.