Home / 75,790.55-113,686.20-19,626.72

Finding the Fourth Proportional to 75,790.55, 113,686.20 and 19,626.72

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Solution

The fourth proportional to 75,790.55, 113,686.20 and 19,626.72 is: 29,440.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,790.55 : 113,686.20 = 19,626.72 : x
  2. Step 2: Convert to fraction form
    75,790.55/113,686.20 = 19,626.72/x
  3. Step 3: Cross multiply
    75,790.55x = 113,686.20 × 19,626.72
  4. Step 4: Simplify right side
    75,790.55x = 2,231,287,215.26
  5. Step 5: Solve for x
    x = 2,231,287,215.26/75,790.55
  6. Step 6: Final answer
    x = 29,440.18

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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.