Home / 79,675.35-109,947.69-45,682.20

Finding the Fourth Proportional to 79,675.35, 109,947.69 and 45,682.20

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Solution

The fourth proportional to 79,675.35, 109,947.69 and 45,682.20 is: 63,038.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,675.35 : 109,947.69 = 45,682.20 : x
  2. Step 2: Convert to fraction form
    79,675.35/109,947.69 = 45,682.20/x
  3. Step 3: Cross multiply
    79,675.35x = 109,947.69 × 45,682.20
  4. Step 4: Simplify right side
    79,675.35x = 5,022,652,364.12
  5. Step 5: Solve for x
    x = 5,022,652,364.12/79,675.35
  6. Step 6: Final answer
    x = 63,038.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.