Home / 79,077.64-118,540.25-29,130.43

Finding the Fourth Proportional to 79,077.64, 118,540.25 and 29,130.43

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Solution

The fourth proportional to 79,077.64, 118,540.25 and 29,130.43 is: 43,667.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,077.64 : 118,540.25 = 29,130.43 : x
  2. Step 2: Convert to fraction form
    79,077.64/118,540.25 = 29,130.43/x
  3. Step 3: Cross multiply
    79,077.64x = 118,540.25 × 29,130.43
  4. Step 4: Simplify right side
    79,077.64x = 3,453,128,454.81
  5. Step 5: Solve for x
    x = 3,453,128,454.81/79,077.64
  6. Step 6: Final answer
    x = 43,667.57

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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.