Home / 86,342.39-129,274.43-44,131.57

Finding the Fourth Proportional to 86,342.39, 129,274.43 and 44,131.57

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Solution

The fourth proportional to 86,342.39, 129,274.43 and 44,131.57 is: 66,075.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,342.39 : 129,274.43 = 44,131.57 : x
  2. Step 2: Convert to fraction form
    86,342.39/129,274.43 = 44,131.57/x
  3. Step 3: Cross multiply
    86,342.39x = 129,274.43 × 44,131.57
  4. Step 4: Simplify right side
    86,342.39x = 5,705,083,343.90
  5. Step 5: Solve for x
    x = 5,705,083,343.90/86,342.39
  6. Step 6: Final answer
    x = 66,075.12

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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.