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Finding the Fourth Proportional to 80,258.90, 120,359.93 and 23,320.95

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Solution

The fourth proportional to 80,258.90, 120,359.93 and 23,320.95 is: 34,973.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,258.90 : 120,359.93 = 23,320.95 : x
  2. Step 2: Convert to fraction form
    80,258.90/120,359.93 = 23,320.95/x
  3. Step 3: Cross multiply
    80,258.90x = 120,359.93 × 23,320.95
  4. Step 4: Simplify right side
    80,258.90x = 2,806,907,792.93
  5. Step 5: Solve for x
    x = 2,806,907,792.93/80,258.90
  6. Step 6: Final answer
    x = 34,973.17

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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.