Home / 75,618.95-113,419.77-20,219.27

Finding the Fourth Proportional to 75,618.95, 113,419.77 and 20,219.27

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Solution

The fourth proportional to 75,618.95, 113,419.77 and 20,219.27 is: 30,326.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,618.95 : 113,419.77 = 20,219.27 : x
  2. Step 2: Convert to fraction form
    75,618.95/113,419.77 = 20,219.27/x
  3. Step 3: Cross multiply
    75,618.95x = 113,419.77 × 20,219.27
  4. Step 4: Simplify right side
    75,618.95x = 2,293,264,385.87
  5. Step 5: Solve for x
    x = 2,293,264,385.87/75,618.95
  6. Step 6: Final answer
    x = 30,326.59

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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.