Home / 68,258.90-102,393.21-21,510.56

Finding the Fourth Proportional to 68,258.90, 102,393.21 and 21,510.56

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Solution

The fourth proportional to 68,258.90, 102,393.21 and 21,510.56 is: 32,267.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,258.90 : 102,393.21 = 21,510.56 : x
  2. Step 2: Convert to fraction form
    68,258.90/102,393.21 = 21,510.56/x
  3. Step 3: Cross multiply
    68,258.90x = 102,393.21 × 21,510.56
  4. Step 4: Simplify right side
    68,258.90x = 2,202,535,623.95
  5. Step 5: Solve for x
    x = 2,202,535,623.95/68,258.90
  6. Step 6: Final answer
    x = 32,267.38

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1.5x scale

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.