Home / 66,347.57-99,505.87-18,961.36

Finding the Fourth Proportional to 66,347.57, 99,505.87 and 18,961.36

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Solution

The fourth proportional to 66,347.57, 99,505.87 and 18,961.36 is: 28,437.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,347.57 : 99,505.87 = 18,961.36 : x
  2. Step 2: Convert to fraction form
    66,347.57/99,505.87 = 18,961.36/x
  3. Step 3: Cross multiply
    66,347.57x = 99,505.87 × 18,961.36
  4. Step 4: Simplify right side
    66,347.57x = 1,886,766,327.02
  5. Step 5: Solve for x
    x = 1,886,766,327.02/66,347.57
  6. Step 6: Final answer
    x = 28,437.61

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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.