Home / 66,875.82-92,289.68-40,019.46

Finding the Fourth Proportional to 66,875.82, 92,289.68 and 40,019.46

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Solution

The fourth proportional to 66,875.82, 92,289.68 and 40,019.46 is: 55,227.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,875.82 : 92,289.68 = 40,019.46 : x
  2. Step 2: Convert to fraction form
    66,875.82/92,289.68 = 40,019.46/x
  3. Step 3: Cross multiply
    66,875.82x = 92,289.68 × 40,019.46
  4. Step 4: Simplify right side
    66,875.82x = 3,693,383,157.17
  5. Step 5: Solve for x
    x = 3,693,383,157.17/66,875.82
  6. Step 6: Final answer
    x = 55,227.48

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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.