Home / 75,616.38-113,415.93-20,216.70

Finding the Fourth Proportional to 75,616.38, 113,415.93 and 20,216.70

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Solution

The fourth proportional to 75,616.38, 113,415.93 and 20,216.70 is: 30,322.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,616.38 : 113,415.93 = 20,216.70 : x
  2. Step 2: Convert to fraction form
    75,616.38/113,415.93 = 20,216.70/x
  3. Step 3: Cross multiply
    75,616.38x = 113,415.93 × 20,216.70
  4. Step 4: Simplify right side
    75,616.38x = 2,292,896,191.38
  5. Step 5: Solve for x
    x = 2,292,896,191.38/75,616.38
  6. Step 6: Final answer
    x = 30,322.74

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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.