Home / 42,769.64-64,150.33-13,179.53

Finding the Fourth Proportional to 42,769.64, 64,150.33 and 13,179.53

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Solution

The fourth proportional to 42,769.64, 64,150.33 and 13,179.53 is: 19,768.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,769.64 : 64,150.33 = 13,179.53 : x
  2. Step 2: Convert to fraction form
    42,769.64/64,150.33 = 13,179.53/x
  3. Step 3: Cross multiply
    42,769.64x = 64,150.33 × 13,179.53
  4. Step 4: Simplify right side
    42,769.64x = 845,470,877.99
  5. Step 5: Solve for x
    x = 845,470,877.99/42,769.64
  6. Step 6: Final answer
    x = 19,768.02

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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.