Home / 42,759.68-64,149.24-14,678.64

Finding the Fourth Proportional to 42,759.68, 64,149.24 and 14,678.64

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Solution

The fourth proportional to 42,759.68, 64,149.24 and 14,678.64 is: 22,021.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,759.68 : 64,149.24 = 14,678.64 : x
  2. Step 2: Convert to fraction form
    42,759.68/64,149.24 = 14,678.64/x
  3. Step 3: Cross multiply
    42,759.68x = 64,149.24 × 14,678.64
  4. Step 4: Simplify right side
    42,759.68x = 941,623,600.23
  5. Step 5: Solve for x
    x = 941,623,600.23/42,759.68
  6. Step 6: Final answer
    x = 22,021.30

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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.