Home / 78,251.24-107,989.16-44,259.06

Finding the Fourth Proportional to 78,251.24, 107,989.16 and 44,259.06

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Solution

The fourth proportional to 78,251.24, 107,989.16 and 44,259.06 is: 61,078.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,251.24 : 107,989.16 = 44,259.06 : x
  2. Step 2: Convert to fraction form
    78,251.24/107,989.16 = 44,259.06/x
  3. Step 3: Cross multiply
    78,251.24x = 107,989.16 × 44,259.06
  4. Step 4: Simplify right side
    78,251.24x = 4,779,498,490.49
  5. Step 5: Solve for x
    x = 4,779,498,490.49/78,251.24
  6. Step 6: Final answer
    x = 61,078.89

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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.