Home / 89,410.10-123,440.13-59,221.30

Finding the Fourth Proportional to 89,410.10, 123,440.13 and 59,221.30

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Solution

The fourth proportional to 89,410.10, 123,440.13 and 59,221.30 is: 81,761.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,410.10 : 123,440.13 = 59,221.30 : x
  2. Step 2: Convert to fraction form
    89,410.10/123,440.13 = 59,221.30/x
  3. Step 3: Cross multiply
    89,410.10x = 123,440.13 × 59,221.30
  4. Step 4: Simplify right side
    89,410.10x = 7,310,284,970.77
  5. Step 5: Solve for x
    x = 7,310,284,970.77/89,410.10
  6. Step 6: Final answer
    x = 81,761.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.