Home / 71,681.24-107,539.23-21,758.47

Finding the Fourth Proportional to 71,681.24, 107,539.23 and 21,758.47

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Solution

The fourth proportional to 71,681.24, 107,539.23 and 21,758.47 is: 32,642.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,681.24 : 107,539.23 = 21,758.47 : x
  2. Step 2: Convert to fraction form
    71,681.24/107,539.23 = 21,758.47/x
  3. Step 3: Cross multiply
    71,681.24x = 107,539.23 × 21,758.47
  4. Step 4: Simplify right side
    71,681.24x = 2,339,889,109.78
  5. Step 5: Solve for x
    x = 2,339,889,109.78/71,681.24
  6. Step 6: Final answer
    x = 32,642.98

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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.