Home / 66,539.22-91,824.34-42,665.99

Finding the Fourth Proportional to 66,539.22, 91,824.34 and 42,665.99

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Solution

The fourth proportional to 66,539.22, 91,824.34 and 42,665.99 is: 58,879.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,539.22 : 91,824.34 = 42,665.99 : x
  2. Step 2: Convert to fraction form
    66,539.22/91,824.34 = 42,665.99/x
  3. Step 3: Cross multiply
    66,539.22x = 91,824.34 × 42,665.99
  4. Step 4: Simplify right side
    66,539.22x = 3,917,776,372.20
  5. Step 5: Solve for x
    x = 3,917,776,372.20/66,539.22
  6. Step 6: Final answer
    x = 58,879.20

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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.