Home / 43,250.55-64,878.38-12,085.80

Finding the Fourth Proportional to 43,250.55, 64,878.38 and 12,085.80

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Solution

The fourth proportional to 43,250.55, 64,878.38 and 12,085.80 is: 18,129.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,250.55 : 64,878.38 = 12,085.80 : x
  2. Step 2: Convert to fraction form
    43,250.55/64,878.38 = 12,085.80/x
  3. Step 3: Cross multiply
    43,250.55x = 64,878.38 × 12,085.80
  4. Step 4: Simplify right side
    43,250.55x = 784,107,125.00
  5. Step 5: Solve for x
    x = 784,107,125.00/43,250.55
  6. Step 6: Final answer
    x = 18,129.41

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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.