Home / 94,781.30-142,124.39-31,579.19

Finding the Fourth Proportional to 94,781.30, 142,124.39 and 31,579.19

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Solution

The fourth proportional to 94,781.30, 142,124.39 and 31,579.19 is: 47,352.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,781.30 : 142,124.39 = 31,579.19 : x
  2. Step 2: Convert to fraction form
    94,781.30/142,124.39 = 31,579.19/x
  3. Step 3: Cross multiply
    94,781.30x = 142,124.39 × 31,579.19
  4. Step 4: Simplify right side
    94,781.30x = 4,488,173,115.44
  5. Step 5: Solve for x
    x = 4,488,173,115.44/94,781.30
  6. Step 6: Final answer
    x = 47,352.94

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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.