Home / 42,790.32-64,160.82-16,491.60

Finding the Fourth Proportional to 42,790.32, 64,160.82 and 16,491.60

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Solution

The fourth proportional to 42,790.32, 64,160.82 and 16,491.60 is: 24,727.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,790.32 : 64,160.82 = 16,491.60 : x
  2. Step 2: Convert to fraction form
    42,790.32/64,160.82 = 16,491.60/x
  3. Step 3: Cross multiply
    42,790.32x = 64,160.82 × 16,491.60
  4. Step 4: Simplify right side
    42,790.32x = 1,058,114,579.11
  5. Step 5: Solve for x
    x = 1,058,114,579.11/42,790.32
  6. Step 6: Final answer
    x = 24,727.90

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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.