Home / 78,987.24-118,400.82-34,037.88

Finding the Fourth Proportional to 78,987.24, 118,400.82 and 34,037.88

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Solution

The fourth proportional to 78,987.24, 118,400.82 and 34,037.88 is: 51,022.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,987.24 : 118,400.82 = 34,037.88 : x
  2. Step 2: Convert to fraction form
    78,987.24/118,400.82 = 34,037.88/x
  3. Step 3: Cross multiply
    78,987.24x = 118,400.82 × 34,037.88
  4. Step 4: Simplify right side
    78,987.24x = 4,030,112,903.06
  5. Step 5: Solve for x
    x = 4,030,112,903.06/78,987.24
  6. Step 6: Final answer
    x = 51,022.33

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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.