Home / 45,171.16-67,779.87-21,505.48

Finding the Fourth Proportional to 45,171.16, 67,779.87 and 21,505.48

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Solution

The fourth proportional to 45,171.16, 67,779.87 and 21,505.48 is: 32,269.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,171.16 : 67,779.87 = 21,505.48 : x
  2. Step 2: Convert to fraction form
    45,171.16/67,779.87 = 21,505.48/x
  3. Step 3: Cross multiply
    45,171.16x = 67,779.87 × 21,505.48
  4. Step 4: Simplify right side
    45,171.16x = 1,457,638,638.69
  5. Step 5: Solve for x
    x = 1,457,638,638.69/45,171.16
  6. Step 6: Final answer
    x = 32,269.23

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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.