Home / 75,010.20-112,515.30-45,485.70

Finding the Fourth Proportional to 75,010.20, 112,515.30 and 45,485.70

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Solution

The fourth proportional to 75,010.20, 112,515.30 and 45,485.70 is: 68,228.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,010.20 : 112,515.30 = 45,485.70 : x
  2. Step 2: Convert to fraction form
    75,010.20/112,515.30 = 45,485.70/x
  3. Step 3: Cross multiply
    75,010.20x = 112,515.30 × 45,485.70
  4. Step 4: Simplify right side
    75,010.20x = 5,117,837,181.21
  5. Step 5: Solve for x
    x = 5,117,837,181.21/75,010.20
  6. Step 6: Final answer
    x = 68,228.55

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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.