Home / 55,028.63-75,939.79-31,159.95

Finding the Fourth Proportional to 55,028.63, 75,939.79 and 31,159.95

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Solution

The fourth proportional to 55,028.63, 75,939.79 and 31,159.95 is: 43,000.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,028.63 : 75,939.79 = 31,159.95 : x
  2. Step 2: Convert to fraction form
    55,028.63/75,939.79 = 31,159.95/x
  3. Step 3: Cross multiply
    55,028.63x = 75,939.79 × 31,159.95
  4. Step 4: Simplify right side
    55,028.63x = 2,366,280,059.41
  5. Step 5: Solve for x
    x = 2,366,280,059.41/55,028.63
  6. Step 6: Final answer
    x = 43,000.89

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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.