Home / 70,960.86-97,923.89-39,129.75

Finding the Fourth Proportional to 70,960.86, 97,923.89 and 39,129.75

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Solution

The fourth proportional to 70,960.86, 97,923.89 and 39,129.75 is: 53,997.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,960.86 : 97,923.89 = 39,129.75 : x
  2. Step 2: Convert to fraction form
    70,960.86/97,923.89 = 39,129.75/x
  3. Step 3: Cross multiply
    70,960.86x = 97,923.89 × 39,129.75
  4. Step 4: Simplify right side
    70,960.86x = 3,831,737,139.08
  5. Step 5: Solve for x
    x = 3,831,737,139.08/70,960.86
  6. Step 6: Final answer
    x = 53,997.90

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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.