Home / 76,938.38-115,406.37-39,476.83

Finding the Fourth Proportional to 76,938.38, 115,406.37 and 39,476.83

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Solution

The fourth proportional to 76,938.38, 115,406.37 and 39,476.83 is: 59,214.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,938.38 : 115,406.37 = 39,476.83 : x
  2. Step 2: Convert to fraction form
    76,938.38/115,406.37 = 39,476.83/x
  3. Step 3: Cross multiply
    76,938.38x = 115,406.37 × 39,476.83
  4. Step 4: Simplify right side
    76,938.38x = 4,555,877,452.02
  5. Step 5: Solve for x
    x = 4,555,877,452.02/76,938.38
  6. Step 6: Final answer
    x = 59,214.63

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1.5x scale

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.