Home / 78,139.10-107,826.64-44,149.02

Finding the Fourth Proportional to 78,139.10, 107,826.64 and 44,149.02

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Solution

The fourth proportional to 78,139.10, 107,826.64 and 44,149.02 is: 60,922.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,139.10 : 107,826.64 = 44,149.02 : x
  2. Step 2: Convert to fraction form
    78,139.10/107,826.64 = 44,149.02/x
  3. Step 3: Cross multiply
    78,139.10x = 107,826.64 × 44,149.02
  4. Step 4: Simplify right side
    78,139.10x = 4,760,440,485.89
  5. Step 5: Solve for x
    x = 4,760,440,485.89/78,139.10
  6. Step 6: Final answer
    x = 60,922.64

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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.