Home / 76,377.62-114,565.16-31,389.86

Finding the Fourth Proportional to 76,377.62, 114,565.16 and 31,389.86

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Solution

The fourth proportional to 76,377.62, 114,565.16 and 31,389.86 is: 47,084.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,377.62 : 114,565.16 = 31,389.86 : x
  2. Step 2: Convert to fraction form
    76,377.62/114,565.16 = 31,389.86/x
  3. Step 3: Cross multiply
    76,377.62x = 114,565.16 × 31,389.86
  4. Step 4: Simplify right side
    76,377.62x = 3,596,183,838.93
  5. Step 5: Solve for x
    x = 3,596,183,838.93/76,377.62
  6. Step 6: Final answer
    x = 47,084.26

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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.