Home / 78,289.06-117,437.55-22,133.23

Finding the Fourth Proportional to 78,289.06, 117,437.55 and 22,133.23

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Solution

The fourth proportional to 78,289.06, 117,437.55 and 22,133.23 is: 33,200.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,289.06 : 117,437.55 = 22,133.23 : x
  2. Step 2: Convert to fraction form
    78,289.06/117,437.55 = 22,133.23/x
  3. Step 3: Cross multiply
    78,289.06x = 117,437.55 × 22,133.23
  4. Step 4: Simplify right side
    78,289.06x = 2,599,272,304.79
  5. Step 5: Solve for x
    x = 2,599,272,304.79/78,289.06
  6. Step 6: Final answer
    x = 33,200.96

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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.