Home / 78,930.48-118,395.72-32,175.12

Finding the Fourth Proportional to 78,930.48, 118,395.72 and 32,175.12

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Solution

The fourth proportional to 78,930.48, 118,395.72 and 32,175.12 is: 48,262.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,930.48 : 118,395.72 = 32,175.12 : x
  2. Step 2: Convert to fraction form
    78,930.48/118,395.72 = 32,175.12/x
  3. Step 3: Cross multiply
    78,930.48x = 118,395.72 × 32,175.12
  4. Step 4: Simplify right side
    78,930.48x = 3,809,396,498.49
  5. Step 5: Solve for x
    x = 3,809,396,498.49/78,930.48
  6. Step 6: Final answer
    x = 48,262.68

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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.