Home / 66,557.78-99,860.44-28,591.10

Finding the Fourth Proportional to 66,557.78, 99,860.44 and 28,591.10

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Solution

The fourth proportional to 66,557.78, 99,860.44 and 28,591.10 is: 42,896.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,557.78 : 99,860.44 = 28,591.10 : x
  2. Step 2: Convert to fraction form
    66,557.78/99,860.44 = 28,591.10/x
  3. Step 3: Cross multiply
    66,557.78x = 99,860.44 × 28,591.10
  4. Step 4: Simplify right side
    66,557.78x = 2,855,119,826.08
  5. Step 5: Solve for x
    x = 2,855,119,826.08/66,557.78
  6. Step 6: Final answer
    x = 42,896.86

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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.