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Finding the Fourth Proportional to 68,541.80, 102,528.36 and 64,342.76

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Solution

The fourth proportional to 68,541.80, 102,528.36 and 64,342.76 is: 96,247.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,541.80 : 102,528.36 = 64,342.76 : x
  2. Step 2: Convert to fraction form
    68,541.80/102,528.36 = 64,342.76/x
  3. Step 3: Cross multiply
    68,541.80x = 102,528.36 × 64,342.76
  4. Step 4: Simplify right side
    68,541.80x = 6,596,957,660.67
  5. Step 5: Solve for x
    x = 6,596,957,660.67/68,541.80
  6. Step 6: Final answer
    x = 96,247.22

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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.