Home / 45,790.80-68,689.40-18,085.20

Finding the Fourth Proportional to 45,790.80, 68,689.40 and 18,085.20

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Solution

The fourth proportional to 45,790.80, 68,689.40 and 18,085.20 is: 27,129.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,790.80 : 68,689.40 = 18,085.20 : x
  2. Step 2: Convert to fraction form
    45,790.80/68,689.40 = 18,085.20/x
  3. Step 3: Cross multiply
    45,790.80x = 68,689.40 × 18,085.20
  4. Step 4: Simplify right side
    45,790.80x = 1,242,261,536.88
  5. Step 5: Solve for x
    x = 1,242,261,536.88/45,790.80
  6. Step 6: Final answer
    x = 27,129.06

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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.