Home / 80,801.60-121,193.12-30,880.58

Finding the Fourth Proportional to 80,801.60, 121,193.12 and 30,880.58

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Solution

The fourth proportional to 80,801.60, 121,193.12 and 30,880.58 is: 46,317.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,801.60 : 121,193.12 = 30,880.58 : x
  2. Step 2: Convert to fraction form
    80,801.60/121,193.12 = 30,880.58/x
  3. Step 3: Cross multiply
    80,801.60x = 121,193.12 × 30,880.58
  4. Step 4: Simplify right side
    80,801.60x = 3,742,514,217.79
  5. Step 5: Solve for x
    x = 3,742,514,217.79/80,801.60
  6. Step 6: Final answer
    x = 46,317.33

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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.