Home / 76,377.80-114,565.44-31,390.04

Finding the Fourth Proportional to 76,377.80, 114,565.44 and 31,390.04

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Solution

The fourth proportional to 76,377.80, 114,565.44 and 31,390.04 is: 47,084.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,377.80 : 114,565.44 = 31,390.04 : x
  2. Step 2: Convert to fraction form
    76,377.80/114,565.44 = 31,390.04/x
  3. Step 3: Cross multiply
    76,377.80x = 114,565.44 × 31,390.04
  4. Step 4: Simplify right side
    76,377.80x = 3,596,214,148.34
  5. Step 5: Solve for x
    x = 3,596,214,148.34/76,377.80
  6. Step 6: Final answer
    x = 47,084.55

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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.