Home / 80,725.42-121,088.23-38,595.60

Finding the Fourth Proportional to 80,725.42, 121,088.23 and 38,595.60

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Solution

The fourth proportional to 80,725.42, 121,088.23 and 38,595.60 is: 57,893.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,725.42 : 121,088.23 = 38,595.60 : x
  2. Step 2: Convert to fraction form
    80,725.42/121,088.23 = 38,595.60/x
  3. Step 3: Cross multiply
    80,725.42x = 121,088.23 × 38,595.60
  4. Step 4: Simplify right side
    80,725.42x = 4,673,472,339.22
  5. Step 5: Solve for x
    x = 4,673,472,339.22/80,725.42
  6. Step 6: Final answer
    x = 57,893.44

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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.