Home / 89,510.20-134,089.10-64,490.92

Finding the Fourth Proportional to 89,510.20, 134,089.10 and 64,490.92

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Solution

The fourth proportional to 89,510.20, 134,089.10 and 64,490.92 is: 96,609.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,510.20 : 134,089.10 = 64,490.92 : x
  2. Step 2: Convert to fraction form
    89,510.20/134,089.10 = 64,490.92/x
  3. Step 3: Cross multiply
    89,510.20x = 134,089.10 × 64,490.92
  4. Step 4: Simplify right side
    89,510.20x = 8,647,529,420.97
  5. Step 5: Solve for x
    x = 8,647,529,420.97/89,510.20
  6. Step 6: Final answer
    x = 96,609.43

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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.