Home / 45,128.82-67,690.35-15,547.26

Finding the Fourth Proportional to 45,128.82, 67,690.35 and 15,547.26

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Solution

The fourth proportional to 45,128.82, 67,690.35 and 15,547.26 is: 23,319.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,128.82 : 67,690.35 = 15,547.26 : x
  2. Step 2: Convert to fraction form
    45,128.82/67,690.35 = 15,547.26/x
  3. Step 3: Cross multiply
    45,128.82x = 67,690.35 × 15,547.26
  4. Step 4: Simplify right side
    45,128.82x = 1,052,399,470.94
  5. Step 5: Solve for x
    x = 1,052,399,470.94/45,128.82
  6. Step 6: Final answer
    x = 23,319.90

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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.