Home / 66,620.34-99,905.40-27,155.52

Finding the Fourth Proportional to 66,620.34, 99,905.40 and 27,155.52

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Solution

The fourth proportional to 66,620.34, 99,905.40 and 27,155.52 is: 40,723.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,620.34 : 99,905.40 = 27,155.52 : x
  2. Step 2: Convert to fraction form
    66,620.34/99,905.40 = 27,155.52/x
  3. Step 3: Cross multiply
    66,620.34x = 99,905.40 × 27,155.52
  4. Step 4: Simplify right side
    66,620.34x = 2,712,983,087.81
  5. Step 5: Solve for x
    x = 2,712,983,087.81/66,620.34
  6. Step 6: Final answer
    x = 40,723.04

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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.