Home / 76,122.18-114,117.66-29,407.86

Finding the Fourth Proportional to 76,122.18, 114,117.66 and 29,407.86

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Solution

The fourth proportional to 76,122.18, 114,117.66 and 29,407.86 is: 44,086.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,122.18 : 114,117.66 = 29,407.86 : x
  2. Step 2: Convert to fraction form
    76,122.18/114,117.66 = 29,407.86/x
  3. Step 3: Cross multiply
    76,122.18x = 114,117.66 × 29,407.86
  4. Step 4: Simplify right side
    76,122.18x = 3,355,956,168.81
  5. Step 5: Solve for x
    x = 3,355,956,168.81/76,122.18
  6. Step 6: Final answer
    x = 44,086.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.