Home / 71,159.03-106,632.98-28,987.59

Finding the Fourth Proportional to 71,159.03, 106,632.98 and 28,987.59

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Solution

The fourth proportional to 71,159.03, 106,632.98 and 28,987.59 is: 43,438.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,159.03 : 106,632.98 = 28,987.59 : x
  2. Step 2: Convert to fraction form
    71,159.03/106,632.98 = 28,987.59/x
  3. Step 3: Cross multiply
    71,159.03x = 106,632.98 × 28,987.59
  4. Step 4: Simplify right side
    71,159.03x = 3,091,033,231.54
  5. Step 5: Solve for x
    x = 3,091,033,231.54/71,159.03
  6. Step 6: Final answer
    x = 43,438.39

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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.