Home / 80,823.37-121,250.40-30,899.32

Finding the Fourth Proportional to 80,823.37, 121,250.40 and 30,899.32

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Solution

The fourth proportional to 80,823.37, 121,250.40 and 30,899.32 is: 46,354.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,823.37 : 121,250.40 = 30,899.32 : x
  2. Step 2: Convert to fraction form
    80,823.37/121,250.40 = 30,899.32/x
  3. Step 3: Cross multiply
    80,823.37x = 121,250.40 × 30,899.32
  4. Step 4: Simplify right side
    80,823.37x = 3,746,554,909.73
  5. Step 5: Solve for x
    x = 3,746,554,909.73/80,823.37
  6. Step 6: Final answer
    x = 46,354.85

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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.