Home / 81,152.26-111,988.04-45,342.56

Finding the Fourth Proportional to 81,152.26, 111,988.04 and 45,342.56

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Solution

The fourth proportional to 81,152.26, 111,988.04 and 45,342.56 is: 62,571.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,152.26 : 111,988.04 = 45,342.56 : x
  2. Step 2: Convert to fraction form
    81,152.26/111,988.04 = 45,342.56/x
  3. Step 3: Cross multiply
    81,152.26x = 111,988.04 × 45,342.56
  4. Step 4: Simplify right side
    81,152.26x = 5,077,824,422.98
  5. Step 5: Solve for x
    x = 5,077,824,422.98/81,152.26
  6. Step 6: Final answer
    x = 62,571.57

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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.