Home / 55,055.64-75,977.78-31,187.27

Finding the Fourth Proportional to 55,055.64, 75,977.78 and 31,187.27

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Solution

The fourth proportional to 55,055.64, 75,977.78 and 31,187.27 is: 43,039.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,055.64 : 75,977.78 = 31,187.27 : x
  2. Step 2: Convert to fraction form
    55,055.64/75,977.78 = 31,187.27/x
  3. Step 3: Cross multiply
    55,055.64x = 75,977.78 × 31,187.27
  4. Step 4: Simplify right side
    55,055.64x = 2,369,539,538.86
  5. Step 5: Solve for x
    x = 2,369,539,538.86/55,055.64
  6. Step 6: Final answer
    x = 43,039.00

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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.