Home / 81,014.58-121,482.18-28,416.42

Finding the Fourth Proportional to 81,014.58, 121,482.18 and 28,416.42

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Solution

The fourth proportional to 81,014.58, 121,482.18 and 28,416.42 is: 42,610.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,014.58 : 121,482.18 = 28,416.42 : x
  2. Step 2: Convert to fraction form
    81,014.58/121,482.18 = 28,416.42/x
  3. Step 3: Cross multiply
    81,014.58x = 121,482.18 × 28,416.42
  4. Step 4: Simplify right side
    81,014.58x = 3,452,088,649.40
  5. Step 5: Solve for x
    x = 3,452,088,649.40/81,014.58
  6. Step 6: Final answer
    x = 42,610.71

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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.