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Finding the Fourth Proportional to 86,283.48, 129,250.26 and 44,643

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Solution

The fourth proportional to 86,283.48, 129,250.26 and 44,643 is: 66,873.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,283.48 : 129,250.26 = 44,643 : x
  2. Step 2: Convert to fraction form
    86,283.48/129,250.26 = 44,643/x
  3. Step 3: Cross multiply
    86,283.48x = 129,250.26 × 44,643
  4. Step 4: Simplify right side
    86,283.48x = 5,770,119,357.18
  5. Step 5: Solve for x
    x = 5,770,119,357.18/86,283.48
  6. Step 6: Final answer
    x = 66,873.98

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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.