Home / 78,429.60-117,578.24-34,022.92

Finding the Fourth Proportional to 78,429.60, 117,578.24 and 34,022.92

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Solution

The fourth proportional to 78,429.60, 117,578.24 and 34,022.92 is: 51,005.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,429.60 : 117,578.24 = 34,022.92 : x
  2. Step 2: Convert to fraction form
    78,429.60/117,578.24 = 34,022.92/x
  3. Step 3: Cross multiply
    78,429.60x = 117,578.24 × 34,022.92
  4. Step 4: Simplify right side
    78,429.60x = 4,000,355,053.26
  5. Step 5: Solve for x
    x = 4,000,355,053.26/78,429.60
  6. Step 6: Final answer
    x = 51,005.68

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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.