Home / 57,231.80-78,980.12-32,081.30

Finding the Fourth Proportional to 57,231.80, 78,980.12 and 32,081.30

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Solution

The fourth proportional to 57,231.80, 78,980.12 and 32,081.30 is: 44,272.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,231.80 : 78,980.12 = 32,081.30 : x
  2. Step 2: Convert to fraction form
    57,231.80/78,980.12 = 32,081.30/x
  3. Step 3: Cross multiply
    57,231.80x = 78,980.12 × 32,081.30
  4. Step 4: Simplify right side
    57,231.80x = 2,533,784,368.45
  5. Step 5: Solve for x
    x = 2,533,784,368.45/57,231.80
  6. Step 6: Final answer
    x = 44,272.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.