Home / 81,290.26-112,142.67-52,619.17

Finding the Fourth Proportional to 81,290.26, 112,142.67 and 52,619.17

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Solution

The fourth proportional to 81,290.26, 112,142.67 and 52,619.17 is: 72,589.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,290.26 : 112,142.67 = 52,619.17 : x
  2. Step 2: Convert to fraction form
    81,290.26/112,142.67 = 52,619.17/x
  3. Step 3: Cross multiply
    81,290.26x = 112,142.67 × 52,619.17
  4. Step 4: Simplify right side
    81,290.26x = 5,900,854,216.98
  5. Step 5: Solve for x
    x = 5,900,854,216.98/81,290.26
  6. Step 6: Final answer
    x = 72,589.93

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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.