Home / 66,309.12-91,539.18-51,943.37

Finding the Fourth Proportional to 66,309.12, 91,539.18 and 51,943.37

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Solution

The fourth proportional to 66,309.12, 91,539.18 and 51,943.37 is: 71,707.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,309.12 : 91,539.18 = 51,943.37 : x
  2. Step 2: Convert to fraction form
    66,309.12/91,539.18 = 51,943.37/x
  3. Step 3: Cross multiply
    66,309.12x = 91,539.18 × 51,943.37
  4. Step 4: Simplify right side
    66,309.12x = 4,754,853,038.54
  5. Step 5: Solve for x
    x = 4,754,853,038.54/66,309.12
  6. Step 6: Final answer
    x = 71,707.38

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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.