Home / 66,539.63-99,825.17-21,560.91

Finding the Fourth Proportional to 66,539.63, 99,825.17 and 21,560.91

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Solution

The fourth proportional to 66,539.63, 99,825.17 and 21,560.91 is: 32,346.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,539.63 : 99,825.17 = 21,560.91 : x
  2. Step 2: Convert to fraction form
    66,539.63/99,825.17 = 21,560.91/x
  3. Step 3: Cross multiply
    66,539.63x = 99,825.17 × 21,560.91
  4. Step 4: Simplify right side
    66,539.63x = 2,152,321,506.10
  5. Step 5: Solve for x
    x = 2,152,321,506.10/66,539.63
  6. Step 6: Final answer
    x = 32,346.46

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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.