Home / 55,991.04-77,267.64-30,840.54

Finding the Fourth Proportional to 55,991.04, 77,267.64 and 30,840.54

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Solution

The fourth proportional to 55,991.04, 77,267.64 and 30,840.54 is: 42,559.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,991.04 : 77,267.64 = 30,840.54 : x
  2. Step 2: Convert to fraction form
    55,991.04/77,267.64 = 30,840.54/x
  3. Step 3: Cross multiply
    55,991.04x = 77,267.64 × 30,840.54
  4. Step 4: Simplify right side
    55,991.04x = 2,382,975,742.13
  5. Step 5: Solve for x
    x = 2,382,975,742.13/55,991.04
  6. Step 6: Final answer
    x = 42,559.95

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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.