Home / 43,269.60-64,900.08-12,105.12

Finding the Fourth Proportional to 43,269.60, 64,900.08 and 12,105.12

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Solution

The fourth proportional to 43,269.60, 64,900.08 and 12,105.12 is: 18,156.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,269.60 : 64,900.08 = 12,105.12 : x
  2. Step 2: Convert to fraction form
    43,269.60/64,900.08 = 12,105.12/x
  3. Step 3: Cross multiply
    43,269.60x = 64,900.08 × 12,105.12
  4. Step 4: Simplify right side
    43,269.60x = 785,623,256.41
  5. Step 5: Solve for x
    x = 785,623,256.41/43,269.60
  6. Step 6: Final answer
    x = 18,156.47

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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.