Home / 72,341.12-107,801.68-69,962.96

Finding the Fourth Proportional to 72,341.12, 107,801.68 and 69,962.96

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Solution

The fourth proportional to 72,341.12, 107,801.68 and 69,962.96 is: 104,257.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,341.12 : 107,801.68 = 69,962.96 : x
  2. Step 2: Convert to fraction form
    72,341.12/107,801.68 = 69,962.96/x
  3. Step 3: Cross multiply
    72,341.12x = 107,801.68 × 69,962.96
  4. Step 4: Simplify right side
    72,341.12x = 7,542,124,625.77
  5. Step 5: Solve for x
    x = 7,542,124,625.77/72,341.12
  6. Step 6: Final answer
    x = 104,257.78

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.